Well, that was funny...but I've had a similar problem...seriously...
I was spraying my underbody (of the truck, mind you) and was wearing gloves but didn't notice there was a dribble on the nozzle (why does this sound like something else???) and, wouldn't you know it, I suddenly have an incredible urge to pee...
So, I've got these gloves on and I take the right one off with my left hand, no, I took the left off with my right, and then with my bare right hand I take the left off that just happens to have some of this dribble on the fingers (well, mostly on the backs of the glove..,) and in the process I get semi-wet goop on my right hand...
At this point my bladder is about to explode so I run inside and forget almost that I have this goop on my weinie holding hand (if we ever shake hands, you've shook the hand that shook Luigie) and, careful as I try to be, I manage to get goop on my "hootus"...
Not that I would have posted for help on it, but one never knows...fortunately, mine came off (not my Hootus, the goopus) with regular anti-bacterial soap...
Funny, too, but that soap removes just about anything...grease, oil, paint, hootus goopus...I highly recommend it should you lowly goop your hootus