There I am, riding along, and I look down to see that one of my bar-end plugs is loose, just barely hanging in there. No problem, I think, just reinsert it--right? So I reach down with the palm of my hand and give it a forceful whack, a really good, solid hit. Guess what a good, solid whack to one side of your drop bars does?
Note to self: Don't ever give a loose bar-end plug a good, solid whack while "just riding along;" You won't be "just riding along" very much longer.
Christian, Husband, Father, Ranger, Triathlete