Ever had a Dud?

I had my planning MRI Scan today.  Had to be there 1 hour before so I could have my Enema.  Took it at 10:55am.

"It'll take 10 to 15 minutes".

I waited... and waited.

Time was getting on.  Time to drink 2 cups of water.

Still nothing.

I was told not to pee it as they wanted water in my bladder for the MRI.

Had the scan, it went well.

It's now 17:20pm... still nothing...

Good job I didn't take it at home and wait...

Think it must have been a Dud.