I did the same thing once...in my friend's kitchen on a Friday night right before we were going out.
Let's just say that when he walked in the door from the garage and saw me covered in chocolate Grow! and Grow! splattered all over the place from the cabinets, to the counters and floor, it was quite a good laugh for him and my other friends. I spent about 30 minutes cleaning the place up, pissed that I now had nothing to eat/drink before going out, and my clothes were covered.
I borrowed a t-shirt and some pants, and we ended up making it out that night. They continued to laugh all night long.