I agree. Some do have an attitude and others are maybe a little bit too playful. but most are indeed very nice.

I was on a NRT-JFK flight in C and got up to pick up some snacks from the cart. When walking back the flight attendant smirked and said “Jeaz We just had Dinner, aint that enough?” Luckily the flight attendant she was talking to told her to leave me alone.

I took it all in good fun, but I can see how others would be annoyed.