An animal that kicks dirt into people's mouths is a monkey. Monkeys are naughty little things. You should be happy it was just dirt it kicked into your mouth, and not something worse.
You spit the dirt out of your mouth and look back at the monkey to see that it's saluting (さる) you. Is... is it mocking you?
Currently there are no similar looking kanji which exist in the WaniKani learning system