[Skulhedface]

The only case of that I can remember is from the second Transformers movie, which it's been so long since I've seen that I'm running on PURE memory here.

it's the one where Megatron is trying to pull Cybertron close to Earth so that Cybertron's gravity would destroy the Earth, and they had to call the Dinobots to help brace the damage that was about to be done. The Dinobot leader (Grimlock?) was reluctant at first because he personally wasn't going to gain anything from it, but Optimus Prime pointed out that if Earth was destroyed, he would be as well, so the Dinobots agreed.

The only reason I bring it up is because it's the only instance I can remember and it supports your post.