I’ve just had a hornet hit my arm and cling to my sleeve all curled up like a ball. Initially thought it was injured then realised it had caught a very small bee. I couldn’t believe it and wished I could get to my camera, but didn’t want to disturb him.
Cradled in my arm he then manoeuvred the bee into a different position and took off. I realised that we had obviously collided as he caught the bee …. mid-flight! I think he appreciated the soft landing and as there was no threat, and he took a few seconds to sort himself out, before flying away. 
Unbeelievable.