You know the type.
Like you can steal a cop car, you can steal one of the road-block tanks, and a little red-and-green-dressed fella drops out. He's not fussed about the bazookas flying around him, instead he will calmly walk to the pavement and start beating on cops who are naughty to you. It's like he's on your side from the moment you force him out of the tank!
On the negative side, he often does not live long, since he is usually shot to death by military police when he tries to punch them.
I find him to be the most interesting NPC in GTA2. What's up with his behaviour? Why is he dressed in those strange clothes? Why isn't he armed?
Also, his body seems to remain permanently at wherever he was killed, even if everything around him is cleaned up.