Busted for stealing $4 Water at Walmart

This is the second time in Oklahoma I've been stopping the way out of Walmart and required to show my receipt for the $4 worth of water I bought

I don't know if I look like a dirtbag or if Oklahoma is hemorrhaging water they need to crack down on the interstate water trafficking

But I'm sick of getting treated like a criminal every time I leave Walmart so I'll be finding a new place to buy water