Haha, not angry but perhaps passionate? Although I'm not sure I like the idea of a passionate threeway with Soldier and Bigjosh! People would get the wrong idea.
What people don't normally factor in is bodyweight, that is even more pronounced on an exercise like Dips but it's also true for something like Squats. So if an exercise is causing you bother, then being able to work it lighter for therapeutic loads is going to be harder for the bigger fella is he insists on starting with bodyweight.
That's when you can take the slingshot or something else to go lighter 'till you have built up the necessary abilities to perform the exercise properly and safely with bodyweight.