Not All Cyclists Are Bell___s

With my tyring luck going against me today: a repaired inner tube imploded on me, twice, on the way home from work today. A snake bite pinch on the side, not easiest of repairs. So after er tea I bought two new tubes (one for spare). Luck would have it that one of the boxes contained a pre punctured tube! Some bellend of a cyclist decided to return his/her old tube to the shop floor. I'll be taking it back tomorrow, but then they'll think I'm some bellend of a cyclist trying to get a "free" inner tube.
Crazy.