One embarrassing thing that happened last year was a shortage of fuel - or rather not. I ran out of fuel out in the wilds of Norfolk having given son Thomas a lecture about coming out without checking the tank, discovering a little while later that not only had I run out of fuel but that the reserve tap wasn't working.
Emptying the tank, I pulled the tap off to check and found the filter torn and the reserve port full of paint chips:
A few minutes poking around soon had that clear, and I fitted a new filter:
I realised later that this one is of a coarser mesh than I would have liked - I'll have to replace it again...