No imagination⌠
She says she didnât turn the lights on, but then why was the Step Dad sitting in a dark bathroom? 
All sounds a bit too sitcommy 
That couldâve been meâŚexcept for the stepdad part. 
For the same reason she didnât. Do you always turn on the lights when you go to the bathroom in the middle of the night?
Easier to get back to sleep fast if you donât turn the light on. 
Would you say or do anything if your kidâs gf came in while you are shitting in the dark? Or just sit there while she pulls her pants down?
That is another thing. I understand pissing in the dark, but shitting?
Or was he sitting down and pissing?
Iâd probably scream like a girl in a slasher movieâŚgood thing I donât have kids.
A bit of a digression but, why is reverse cowgirl illegal in Alabama?
Because you never turn your back on family
Yes. My wife doesnât let me hear the end of it if my aim is bad.
Plus, like @BigDave said, he was taking a dump, not just a piss.
Ah yes, the 1/10,000 chance piss nightmare. Itâs been a while⌠
This was my take. I do the same so I donât spray the walls in the dark.