It's probably wise. Fortunately Tony has a fairly decent handle on his demon, most of the time, but it's still better to aggravate him unnecessarily. Although at worst he'll probably just leave in a huff, rather than go for outright violence. That's his Doppelganger's department.

"Right..." He does settle a little, no use shouting at a low level employee about the boss's decisions. Not his fault the PR department decided to be assholes. "Gee, I wonder why that might be?" He muses to no one in particular. "The murder, maybe? Nah, couldn't be." Okay, maybe he'll stop being a complete smart-ass. "No contracts." He repeats.

He may help, it might be interesting. But he's not signing up for full-time.