Dear Anon,
Don't worry about it, you should see Spike when he has a cold. Lord Tight Pants took being plastered with snot and tissue rather well, considering. Fancy Pants still snickers a bit when his father crinkles his snout at tissue boxes. Besides, I was alive when not only was there no such thing as toilet paper, there was no such thing as a toilet. It would be... incredibly unpleasant of course, but still by far not the worst thing I've ever had to deal with.
And yes, I do know you're above such things. Your self preservation instinct is uncanny, considering how well you're doing for living in Ponyville.
Your friend,
Celestia.