I nearly choked on my lunch earlier today.
A fellow instructor, whilst still in the Ops Room, was explaining the art of taxi-ing to a new male student.
After explaining the bit about using rudder pedals and toe brakes together he moved on to moving your heels onto the floor of the aircraft whilst resting the balls of your feet on the rudder pedals. However, it came out as:
"You then move your feet down and rest your balls on the pedals"
I wasn't the only one chuckling merrily.
Absolute class!!