Question

I’m a maintenance worker for some moderately nice apartments in LA some homes less people sometimes come and take shits in our hallways my gf tells me i can sue or whatever I don’t really wanna do all that but sometimes my workers bitch I’m not doing everything I’m supposed too do but I still clean up that and it’s not what they explained to me I’d be doing my question being is it illegal for them too make me clean up literal human shit when my job is just clean and mopping hallways