“Grab the bull by the horns.”
“If the horse is dead, dismount.”
“Kill the sacred cow.”
“There’s more than one way to skin a cat.”
“A living dog is better than a dead lion.”
“A bird in the hand is worth two in the bush.”
“Don’t change horses in the middle of the stream.”
“Watch out for PETA.”
I made that last one up. However, if you take this timeless advice seriously, but not literally, you should be okay. That, and don’t watch The Adventures of Milo and Otis.