I haven't worked in retail for many years, but...

*item won't scan*

"I guess it's free then!"

AHHHHHHHHHHHHHHHHHHHHHHHAHAHAHHAHAHAHAHAHAHAEPICWINSOFUCNNYXDLOLOLOLOLHAHAHAHAHHAHAHAHAHAHAHAHAHAHHA HAHAHAHAHHAHAAHAHAHAHAHHAHAHAHAHHAHAHHAHAHAHAHAHHAHAAHHAHAHHAHAHHAHAHAHAHAYOLOHAHAHHAHAHAHAHAHAHAHAHAHAHAAAAAAAAAAA