The ad works because it's alluding to spider man with the bug spray. Nice picture and funny message.

...ne pas réveiller les chatons. Pronom relatif

ne pas réveiller les chatons = don't wake up kittens . "it doesn't matter who woke me . he's gonna die"

Modérément tout de même car je rencontre souvent des gens bien, how lucky I am...

It's not my fault if if my middle finger makes inappropriate gestures. He does whatever he wants after all, he is an adult Majeur = middle finger

"If you're angry, sit two seconds and think about the problem."

I see this often at home, with the cats and dogs. It's a good thing my 90 lbs dog never gets angry. Too cute