today i introduced a litter box for my 5 wk old kittens and guess what!! one of them went straight to it and peed!! yay!! im so happy! i figured it would be hard to get them used to it and start using it but nope! right off the bat one of them went straight over there and used it! but i have a question... should they know to cover it up at this age?? or is it okay if they don't?? my calico (the one that used it first) went over there and pee'd and covered it up but someone pooped and didn't so is it alright?