Julie convinces you to

“Okay Daniel, let’s set a countdown on my smartphone, I am sure a big boy like you can win the bet without having any problems. I was planning to go out on a movie date with you today, but if you are too scared off having an accident in public, to go out that is alright as well.”

“Hey I am not scared, let’s go on a movie date.” You reply hurt in your pride.

“Oh that is wonderful, let just grab me a bottle of water for you so you stay hydrated.” Julie says and grabs a bottle of water for you, unknown to you she slipped an extra strong laxative into it.