One time me and a friend ended up at an after party for The Killers after they performed somewhere in LA. Initially, not knowing anything special was going on, thought the "Viper Rooms" (??) was going to be poo; we walked in through what turned out to be the back door and so missed the hordes of people out the front and the whole place seemed fairly miserable. So we started drinking and annoying the bartender. Turns out you're meant to tip...? So naturally we wound him up about him probably being a cowboy, standard. Anyway, it turns out we were the only people who didn't know what was going on, and so in talking to various people and telling them we thought this place was rubbish we were duly informed of the impending awesomeness. Sweet Goddess Serendipity had our back after all. So more drinking happens and a gay guy asks me to introduce him to the band (we hadn't noticed them arriving), not sure why but as an invulnerable drunk Englishman I of course oblige. So we meet the band and their various taggers along (tag alongers?), and drink some more and generally get involved in a social circle we had no business being anywhere near.
The next thing we both remember is walking towards the entrance of a big white hotel (our friend who lives in LA told us afterwards that it was the most expensive hotel in LA, or something, but I forget the name) behind a load of people who were with The Killers. After exchanging a brief conversation of "WTF is going on?" with my friend, we decide to just roll with it. The group heads out to a balcony area and me and my friend casually set up on a table just off from where the band is sitting. A few other people join us and we just start talking. I think they just assumed we were fine, and those who actually asked who we were got replies of "oh we're nobody, we're English," so no lies were told. Strangely that seemed to be exactly enough information for them.
Soon one of the support band guys suggests that we need more booze, so sets about sending some lackey on a mission. Not satisfied with this, my friend tells the group that he'll sort it out and marches off into the hotel. Having said this loud enough to attract everyone’s attention, people ask me what the hell he's actually doing. "Look, don't worry about that, he's sorting it out," yeah I didn’t know either. But he quickly returns with an armful of spirits and wine. "See, he sorted it out."
It turns out he raided the hotel bar, which was obviously their fault for leaving it unlocked. Being the source of alcohol our social standing instantly shoots up, and soon they all know our names and the fact that we're English, and I find myself pouring spirits into famous people's mouths.
Things quiet down a bit and we get talking to an Aussie guy who has a small band (I think). When he asks us how we know these people we find our selves unable to contain ourselves and tell him the truth. He just laughs and says he won't tell anyone. I don't remember much else, but we got a few guys numbers who we planned to meet in Vegas and managed to get the girl who was with the Aussie guy (who was in his words "trying to get herself out there and get known, yes in that way"

) to give us a lift back to our motel. Part way there something happened to the car and she said that she couldn't drive us any further, but I informed her of the situation thusly,
"Look sweetheart, don't worry about it, I can probably fix your car so just drive us all the way"
"Really?"
"Yes of course, I'm a man, that's what men do, we fix stuff and make things out of iron and steel and brawn."
For some reason she seemed happy enough with that commentary on the ways of the world, and proceeded to take us all the way home. On arrival we calmly got out of the car and started to walk off.
"Wait! What about my car? You said you could fix it..."
"Yeah about that. I can't."
So after a good sleep (reports of me throwing up on myself are unconfirmed), we packed up and set off on our drive up the coast to Santa Barbara (we'd been told it was an awesome Uni town). On the way we realised that we'd been invited to a very important *something* (we literally didn't remember, but it sounded cool) back in LA by some people from the night before. But only having a vague grasp of the way and no map, we continued on. It turns out Serendipity had other plans for us, like waking up in a sorority house. Good times!
tl;dr: drinking is awesome and almost never endangers your health
True story.