shock the cashier

[skyblue1]

formaldehyde , rubber tubing, small pump , bucket

[Gluey]

Ten packs of model airplane glue, a value case of butane, six cans of air wick, a bottle of nail polish remover six pack of paper bags, six packs of plastic bags,
and a can of computer duster.

IT'S LIKE I'M WALK''N ON SUNSHINE!!!!!!!!

[skyblue1]

asking for change for twenty dollar bill as I lay my Smith & Wesson on the counter

[punkdrew]

Pregnancy kit
A bunch of coat hangers
Whiskey

More disturbing if a guy does this.

Who needs that stuff when you have a fist?  PAWNCH!

Neil LaBute's play The Distance From Here is based around that idea.

[Yuri Bezmenov]

A clown costume

A bag of balloon animal balloons

A box of condoms.   

[Jack]

An exacto knife and a copy of Gray's Anatomy.

["couldbecousin"]

  Occasionally my purchases will total $6.66, which has sometimes worried me enough
  to compel me to grab an impulse-purchase item to add to my stuff, and I'm not even religious. 

[WolFish]

a long time ago i received my change back, glanced at it and told the cashier she had miscounted. i still had my hand out. she stared at me with her mouth open, then took the coins back and counted them three times before adding the missing amount.

i suspect that it was because i was in the "deep south," had a yankee accent and a permanent tan.

[renaeden]

Cat food and a spoon.

[Queen Victoria]

Once my purchase came to exactly $100.  That was the first time for the cashier and for me.