I'm guessing that fences might also be a slight problem for the sewer system.
Just make sure you include a gate.
You could always put them through a meat grinder or dissolve them in acid pre flushing! Just don't use the bath for the dissolving. The tub won't keep the acids contained.
I sometimes use tissues when I run out of toilet paper. I hope that's not a problem ... (?)
Tissues are not designed to break down in water like toilet paper is.
Do you run out of toilet paper often?
Buy backup TP to your TP
flush fences‽ obvious typo, should have been "feces"