A few that spring to mind.
2006 riding a £600 FJ1100 through the Atlas mountains one crisp, sunny, traffic free, April morning with no helmet, cool wind in the hair, beautiful scenery.
2000 Blasting past all the supercars riding into Monaco when the F1 was on.
1988 350YPVS N, riding 300 miles down to St Ives on my own to my mates, and getting into a race with a guy on a Harley over Bodmin Moor, after about 20 miles of madness we stopped for a dodgy roll up and a laugh.
1989 350YPVS N, arriving at St Ives and sitting outside the Ginsters shop next to The Sloop on the front with a pastie and a pint and watching my mate wheelie his 350LC down the front past a PC and WPC walking along holding hands, they never said a word.
2012. Parking up in Tossa De Mar and watching the Brit bikers walking past on holiday with their families pointing at our bikes and giving us the thumbs up.
2000. Being on the oldest bike by 11 years at a Donington track day and only getting past by two bikes.
2004. Teaching myself how to powerslide a CBR600 at a Ron Haslam race school. Well, it wasn't my bike was it!
1989 350YPVS N, beating my mate riding his 500YPVS on a lap of the Longton GP.
Cant remember the year, Bulldog Bash when the burger van went up and the propane cylinders went off.
1996(?) Performance bikes frenzy when thousands of people turned up at Cadwell and burnt down the beer tent when they ran out of beer, Whitham had to come on stage and appeal for calm, with some guy sitting on the superstructure about 12 feet above his head, mayhem!
Ill add more as they surface from the murk of my memory.