Evil Genius's
Bruce was working in the lab at Stark Towers when Tony came in. As Tony walked in Bruce was called by Clint to examine Natasha who had just came back from a solo mission. When Bruce left, little did Tony know that Bruce had pushed a button.
10 minutes later:
Tony was getting sprayed with helium which in his opinion was mean and he'd get back at Bruce, even if it meant Bruce turning into the Hulk and Clint having to tranquilize the Hulk.
Tony left thje lab and almost ran into Steve. "Hi Tony what's up?" asked Steve. "Oh, not much where's Bruce?" asked Tony in a super squeky high pitched voice. "PH, let me guess helium? Bruce is with Clint and Natasha in Clint's room. By the way Bruce did that to piss you off and it should last for about 24 hours" said Steve who then walked away.
"FUCK YOU BRUCE!" yelled Tony in a high pitched voice.