My diversion history;
- Frying NavCom.
- Low fuel due to stronger than expected headwind.
- Toilet break.
- Mountain wave over the Rockies.
- CBs and thunderstorms.
- Fog.
I diverted only last week. I grabbed the wrong sectional map for the 2nd half of my route and didn't notice till I was airborne and well on the way. Popped into an FBO on the way and purchased a new one.