On my way into town for the horse show a couple weeks ago my friend asked me to stop by the store to pick up some WD-40 for a snap that had gotten stuck and a bag of ice for the cooler. I got up to the check-out with my stuff. The girl at the counter stared at me for a second and finally asked if I was going to do some kind of experiment.
The best one though, happened several years ago when a friend and I were putting together a foaling kit for a 4-H project. Most of the things we needed we already had laying around the house, but we were missing a couple of items. So we went to Wal-Mart and walked up to the cashier with nothing but some KY jelly and an enema. As she was ringing us up she said "I don't even want to know what you two are up to" We just grinned as we paid her and walked off, giggling uncontrollably. We honestly hadn't thought how bad that looked before she said something.
Now, I know I'm not the only one to get some strange looks when buying horse related items. Share your stories of when your purchases might have given people the wrong idea.