I got involved in ejection three times.
Once, I did the Ejection Seat rig at RAF North Luffenham. Suffered lots of discomfort in my back and lower legs, probably a good cause of DVT!
Once, got as far as getting out FRCs in an iced-up jet at night to go through the pre-ejection drills. Fortunately we cleared icing conditions and did a straight in approach and got away with it.
Once, got ejected from a nightclub in York.