As the others, great fun, with a twist. Went White Waltham-Bournemouth-Jersey-Manchester - White Waltham. Only we didn't, got to Jersey and we went to see a colleague in the Twr and the pilot went for a comfort break. Met back at the aircraft and as we were taxying he said "there's a howling Northerly, it will take forever to get to Manch, let's got to Southend instead"
So muggins ends up re-planning as we taxy out.
Get to Southend where the pilot has some mates only they stood round laughing.
Customs decided that we were iffy having not gone to Manch and late change to Southend maybe we were smuggling and took lots of the aircraft apart!
Some time later we got back to White Waltham.