Beespittle, droppings, hairs of beefur: all become honey. Virulent micro-organisms cannot survive in honey.
Alexandros of Antioch took a block of marble and chiseled away from it everything that was not his masterpiece, the Venus de Milo. If you will chisel away one fault from your character every day, you may discover - a) that you're actually a statue of Margaret Thatcher. b) that you're still just a block of marble. c) that there are pigeon droppings on your shoes. d) that you, too, are a hidden masterpiece.
Don't "pole-vault over mouse truds" - by the time you've discussed the many options available to you, the problem itself could have been long behind you had you simply disposed of those rodent droppings with a simple tissue and dumped them into the garbage!
Men would eat horse droppings, if ye served them wi' butter.
Puns are the droppings of soaring wits.
Chemical waste products are the droppings of science.