Must be honest I have not heard this story about "comedy suicide bombers", does somebody have a link to back this up?
Also, this is supposed to be a free country so if somebody wants to stand up in a train with a backpack on and scream "Allah Akbar" they have every right to tbh, if they dont have a bomb and they are not a suicide bomber then what in the hell is it they have done so wrong?
Fair enough its not exactly in good taste, and it would probably make a few people jump out of thier seats and clobber the joker, but in all honesty thats a consequence of his action and if he gets a black eye thats just tough. I dont think the police should be wasting time arresting these people tbh, they have not violated any laws by doing that and I dont feel its necessary to make any new ones up to cover it.