There's dodgy practitioners of everything everywher x_x one of the guys in my last kung fu group told me about this tai chi person they knew who would teach chikung, and then stand behind people in a similar pose and the person in front would collapse.

My instant reaction was...well let's just say I was somewhat mad. Advised friend to bail and suggest everyone else in that particular group do likewise. Gung ho young stupid me probably wanted to fight the guy too but while I could probably have spiked him good I would have got my arse kicked because I'm definitely not a tai chi master xD

Bastiches give everyone a bad name >_<

Anyway was great that you got good experiences and thought to put out the warning for other people wanting to give it a go too :)