1982 when we had a very hard winter with lots of snow.....and you buy an SP370 trail bike and fit a non road legal knobbly moto-X rear tyre so you can still go biking in the snow
Doing lifesavers when walking on a crowded city pavement before you nip past someone
Getting home after a summer ride and there are flies and insects in your teeth cos you smiled so much
(Made the last one up!)