I was once flying in a Hunter T7 with OC 3 Sqn at Valley who suspected that there was something wrong with the RH fuel gauge due to a seeming need to keep rebalancing by selective boost pump switching. After we landed and taxyed in, he deliberately kept the engine running off the suspect side until it flamed out. "Good", he said, "Let's see the engineers talk the way out of this Incident Report - engine flamed out with 400 lb remaining indicated on starboard fuel gauge!"
Funnily enough, they didn't - and it was soon fixed!
I've also had that horrid 'flicking horizon' thing after doing high-rot spins in the Bulldog - very unpleasant.
When we first had the Hawk at Chivenor, a number of guys used to feel very weird after ACM trips. "Doggers Wobbles" we called it - something to do with semi-circular canals, I guess. I can't remember the sequence, but after taxying in and braking, the a/c used to nod slightly, then you had to look down as you pulled the park brake on, turned various things off and hopped out. I guess all the mental gyros had gone tilt - it usually lasted as far as the crewroom. But the funny thing was that no-one mentioned it to anyone else for months as they thought it was only affecting them. Of course, the staff mate would go and sign the jet in and meet you for a coffee a bit later; by then all was well. We sorted it by waiting for a minute or so before getting out - and by not making rapid head movements.