I started reading a story called "Wynter" by Russell Hoisington. I found a major error and was going to let him know. But he seems to have turned off feedback so I warn authors about doing that.
In the beginning of his story he writes:
"And she said she'd had to remove the catheter this morning..."
Then, shortly afterward, he writes:
"Slowly, gently, but with some sense of urgency because he had waited until he thought his bladder was about to explode, he talked her through removing the limp three inches from his pajamas, uncovering the head of his uncircumcised spigot, inserting it into the neck of the urinal, and then holding everything steady with the tips of her long, gentle fingers while he voided his urine."
If he has a catheter in, that wouldn't happen.
So, don't turn off feedback.