Inspired by this Far Side cartoon, which shows the pilots of (presumably) a passenger airliner rolling the plane steeply from side to side, and claiming (to the passengers) that they’re just passing through some turbulence.
Are there any known instances of airline pilots actually doing something like that during revenue flights? Yes, I am perfectly aware that this would be considered highly unprofessional behaviour, and, as we all know, pilots never behave unprofessionally.