This is why you wear gloves during experiments, Bruce.
Mark Ruffalo been sending some amusing videos via Instagram from the set in Australia and both Chris Hemsworth and director Taika Waititi have gotten in on the act.
If the set shenanigans are any indication, Thor: Ragnarok is going to be a blast. Check out the photos and videos below.
Just had a very constructive story meeting with our Thor 3 director @taikawaititi – gonna be a lotta fun. If you haven't seen his other film yet @huntforthewilderpeople, go see it! It's got more heart, humor and fun than a bag of marshmallows. It opens tomorrow in LA/NYC and everywhere in July. Visit wilderpeople.film to buy tickets !!