That's like trying to hop on your bicycle and you forgot to put the wheels back on.
Happens all the time...And I've definitely seen funnier.
I had a friend that did something similar. He had flown several low approaches while chasing a student in another jet so my fearless associate had been raising the gear on each go-around. On his full stop landing, my friend lands and for some unknown reason, even to him, he raised the gear handle. Normally, a micro-switch in the landing will not allow the gear to come up with weight on wheels but his jet was very light due to a low fuel load and the gear retracted. He had the Heads Up Display video tape going and the exact same thing happened. Some warning tones came on and then various "colorful" statements were made. So, it happens.
Flying a jet is no different than riding a bicycle. It's just a lot harder to put baseball cards in the spokes.