The bootcamp class I go to is called “Warrior” and a guy turned up last week, barefoot, thinking it was WARRIOR yoga haha.
I used to go here in Old Street which I used to really love and you can get a 30 day trial for quite cheap to try it. It’s HARD and all sorts of people go and it doesn’t feel pretentious or judgey? (A lady wrote an article about going there and she is a plus sized lady (although I hate to say that) and said she felt included which is quite tricky when you go to these yoga places as they can turn their noses up at anyone not mega thin)
http://www.fiercegrace.com/
Or are you just worried about farting?
I’ve started doing core classes too which is always good for improving anything but fuck me its hard