Target (tm) as a laxative?

why is it that whenever i go to target it makes me need to take a crap? every time i go there, i start walking around, looking for the stuff i need then like 5-6 min later, BooM! i need to poop. wtf. it's probably a bad marketing ploy, but i think i will take up that campaign.... "Target! Better than EX-Lax!