I had a situation like this the other day. I'm on my tenth jump but I didn't think it would hurt to joke a little, but it was with my instructor. He was saying something about how I should make sure and check that he has my pilot chute when he says he does. I said something like "You better have it...no April fools jokes on my today huh." He seemed to get rather annoyed with this. I was very serious up to this point and was just trying to make myself relax. Does this sound out of line? Maybe he just hates me?