“The toofpaste set me up !”
Hilariously pathetic.
Reminds of the Seinfeld episode with the poppy seeds making Elaine fail a drug test. Though her excuse was valid on the show.
And maybe would be in real life too.
http://www.straightdope.com/columns/read/1112/will-poppy-seed-bagels-cause-you-to-fail-a-drug-test