>>81511393 (OP)Depends on where I found him.
If he was in my house I would physically remove him from my home, and possibly him from this mortal coil.
If it was at some sort of event and he requested my assistance then I would probably help him out of the suit as best I could.
If he was just some random person on the street and not at a con or other sort of event where such a outfit would make sense, then quite honestly would just call 911 and have emergency workers sort it out while keeping my distance. Getting too close to crazies is how you get your face ripped off or your liver stabbed full of holes.