People who ride once a year and forget how to ride (not surprisingly).
In Western Nova Scotia each year we have the Wharf Rat Rally. Thousands of bikers from Eastern NA arrive in the province. I swear some of these folks haven't thrown a leg across since last year.
I suppose I should be glad they are being cautious and prudent, but when you've got a gaggle of these machines trundling down the roads and c-r-e-e-p-i-n-g around the corners, it makes one feel , shall we say, slightly less welcoming. Especially if you are trying to get somewhere.
Learn to drive the darned thing before you leave home!
I thought it was just me, but a week after the rally, I was talking to three riders who said they avoid the rally for just that reason.
Rant off.
Les