[user104658]

If it's not someone I know, or maybe a child, then generally I don't give enough of a **** to risk myself being a hero. Definitely not to stop a shoplifter?? Oh yes let's risk getting stabbed to save a multi million £££ corporation £10. Errrrrrr. Also OP if you'd tripped that guy and he'd been injured, you'd probably have ended up being charged for assault of some kind. ****ty system. We're specifically told that at work - if someone attacks YOU, you can defend yourself if necessary. If someone barges in just trying to grab cash, you CAN'T hit them or attempt to detain them. Security guards / bouncers etc. have special licences to be able to do so these days.