Mugged at knifepoint by a gang when I was about 16, late night in Belfast.
Went to a pub with our fake IDs, didn't get let in as the bouncers were feeling like douches that evening, so went to a local club instead. Atmosphere there was cack, so we decided to head round St. Annes Cathedral area, have a toke, then head home.
Unfortunately, on the way there we passed a gang of 4 jumped-up lads and two girls (there were three of us), glue-bagged out of their heads. They started asking for money to use the payphone -- told them we didn't have any change, to which the response was one of them yelping "Here, he's got notes!".
"Here we go", I sighed.
Anyway, I kept walking, but my mates allowed themselves to be stopped further behind so after an elongated act of one of them needing help to call a cab to get home, things got progressively more dark and ugly.
I used the "Derren Brown" method mentioned previously, and got into a distraction-based conversation with a couple of them, which was progressing quite amicably (to the point where one of them told the others to leave me out of it, as I was "dead on"). Unfortunately one of my less-than-manipulative friends was engaged with the ringleader, who promptly smacked him in the face, sending him to the ground.
Then he set about searching him, taking his cigarettes... and a knife he was carrying.
Said knife ended up at my throat while my wallet was emptied of cash. What the dumbasses didn't know, however, was that while I was busy yakking away and distracting them, I was using my fingertips to pull the notes out of my wallet and stuff them down into my boxers (while hoping they didn't just fall down and out my trouser leg!

). Still, I had a good £20-odd quid in pound coins in that wallet!
Anyway, they tried to take my watch, as well, which I refused -- simply saying "Nah dude, that's my watch, and it's crap anyway". Also convinced them my necklace wasn't worth anything (was only worth about £50 anyway) and it all defused after they waved a few UVF tattoos in our faces etc. My other mate also got a punch in the face, almost breaking his glasses.
Once they were done, we were then told that we had 10 seconds to run, and then they were coming after us with the knife. Told them to wise up, and then as we walked away another friend we knew who lived nearby appeared, wakling some other friends home from a house party. As soon as they realised we knew them, they slinked away. Saw them later down the road, running along hooting and hollering. Got in touch with the police, but apparently despite them running right through Belfast City Center at gone 11.30pm, they weren't caught on any CCTV.
Pretty confident that had push come to shove and my friend not gone down so quickly with a single punch (admittedly, it was a sucker punch), we could have easily taken the group of them without much issue -- but it's a prime example of why people shouldn't be carrying weapons. Once your attacker takes that from you, the empowerment it gives them is magnified, and the danger increases significantly. Guess we were lucky that they didn't find the stash of weed he had on him, as they'd been accusing us of being drug dealers on "their turf" yadda yadda. Again, obviously just a reason to act like a thug but if they had found some twisted vindication in that... who knows.
Took a taxi home, made a coke-can pipe and had at it while trying to keep my friend awake in case he was concussed. Wasn't a pleasant evening, let me tell you. If only my mates been more concerned with getting drunk than whether the music was any good!
Since then, nope, never been mugged. Been intimidated and threatened in the street by scrotes, but never let anything progress beyond that. Actually, a couple of years after the mugging incident, I popped out from a bar alone to go get cigarettes while my mate (not one of the ones mentioned above) stayed behind. On the way to the garage, and pretty tipsy, I came into the path of two tracksuited teenage scrotes who immediately focused on me and started their incoming swagger. Dark street, basically a cut-through to the petrol station with little light and public coverage. Knew immediately what they were up to as they approached in front of me, close together and blocking my path.
"Alright maaaaaate!", the first one entered his diatribe with that taunting aggression, spreading him arms wide to stop me walking round. He got lamped right in the mouth without a word, and went to the floor. The second one was stunned and he got what felt like a perfectly landed steel toe workboot to the balls. No idea if he went to the floor too as I turned and legged it back to the pub.
Had to spend a ridiculous amount of money for cigs from the machine instead. Sixteen cigarettes for more than a twenty deck??!? That was the biggest travesty, besides the skin taken off my bloody knuckles by that berk's teeth.
As I said, haven't had much of note since but it does surprise me quite often just how willing young kids and teens these days are to get up in the face of a random grown man in the street. It's a mindset that I just don't understand.