Glasgow is no more dangerous than any other city, it has it's good and bad llike everywhere else. Don't believe the 'No Mean City' hype. Follow the basic rules of the big city -
1. Avoid wearing football colours.
2. Avoid idiots in tracksuits.
3. Stick to the busier parts of town at night.
4. Enjoy yourself.
I lived in Glasgow for 29 years and only ever ran into trouble once in the city centre and this involved telling a drug adled big issue seller that I wasn't interested in a purchase no matter how many times he asked, short argument, knife produced, police intervention and junkie taken away to the cells.
Glasgow has an amazing nightlife, some truly great pubs, great restaurants, oodles of culture and the best collection of shops outside of London. Don't miss -
GOMA (Gallery Of Modern Art)
Glasgow Art Gallery and Museum
The Huntarian Museum
The Burrell Collection
The Horseshoe Bar
Jinty McGinty's
The Uni Cafe (best ice cream anywhere)
Enjoy.