Not Sergeant Pepper... but me and the Fish Wife getting married. Only a fool would choose to get married in the second half of St Andrews in October - but we met there, got engaged there, so where else would we get married? Anyway we had a brilliant day. The weather was great and so was the ceremony, the meal and all the other stuff that goes with a wedding.
And since then we've had 20 years of (mostly) happiness together - how great is that? (By the way the question is rhetorical.)