He ask the clerk:”How strong is the effect of this laxative?”
Th clerk says:”There is a public toilet 50 steps away from this store, if you take the laxative now, exits the store and run straight there, as you sit down on a toilet your poops will be pouring out.”
The old man seem satisfied, he bought the laxative, took it and exits the store.
After 5 minutes, he returned to the store.
The clerk asked:”What happened? It didn’t work?.”
The old man answered:”No, it works fine. I am just here to tell you the public toilet is actually 52 steps away.”