It's not a good thought since OP had to clean it up

If she doesn't know to only go in a toilet then the fault is on the parents, not the girl.

What if it was just one of the little fake toilets they have for kids...

Maybe she has a potty standing in her room in case it's too urgent for her to get to the bathroom. With freshly trained kids every second can be crucial.

Hope she has one of those potty chairs. Though if this is a regular thing maybe she needs those pull ups still.

She is four years old. By the time my brother was four he was allowed in his room to play by himself.

My stepchildren (4 and 5) are both able to play in their own rooms without adult supervision. We still check on them every now and then, but they are pretty capable of not killing themselves while playing alone at that age

my niece was allowed to play in her room by herself since she was one. she is 3 and still plays by herself in her room.

Yeah, the thing is, OP is the babysitter. Literally paid (or at least enlisted, perhaps not paid) to keep tabs on the girl. Common sense tells me that OP was a little too far away for too long, but again, kids are little spawns of Satan that will embarrass you at every turn through little fault of your own, so I'm giving the benefit of the doubt.

It could have been pee

I feel like I haven't seen you in forever. Is it just me?

I believe that is considered cannibalism.

*worst

Oh, thank you for educating me :) I hope you feel better about yourself now. Good day ^^

Thank you #11! I was waiting for someone to point that out.

#12 that was my thought too. Many preschools or day cares where I live will accept children who are not potty trained, but usually four is a bit late. Now, I know every child is different, but almost all of the parents I know started training around age two

#12 I was thinking the same, hence why all the people saying, "shouldn't you be watching over her?" are getting thumbs down (or were). One would assume the child just had a dumb idea and it was to shit in her bedroom, because big girls spend a lot of time in there. (make up and stuff)

It's okay, I was a late bloomer when it came to pottying alone. I still knew to go in the little toddler toilet though

My mom runs a daycare and I have 5 nieces and nephews and have been around children my entire life. 4 is definitely way too old to not be properly potty trained. Unless she has developmental issues, as you said, than this is a problem. She definitely should know better and probably does.

My youngest daughter is 4 and has known which rooms contain toilets for years. The OP's scenario is disturbing.

You'd be surprised how many people don't start potty training their kids until they're three or older. I used to teach preschool, and I didn't have any two year olds that would potty reliably. Most of them hadn't even started learning yet.