Friend of mine was flying along in a Dauphin at FL300, but then his turn for the chemical toilet came up in the C-130 and he got out.
Yess been there
Flight level 360 in a Hughes 300C.. pretty funny, the captain on the B747 Cargo asked me to check the altimeter on the Hughes
Didnīt fool me though, told him it would probably show 7-8000 feet.