<human>: Ok, so this didn't happen today, it was about 8 years ago. I just got a new gig caring for disabled foster babies, the parents were leaving town for 4 days and left me with the 6 kids for the first time.

I'm going to change the diaper on this little boy, around age 3, who has spastic quadriplegic cerebral palsy. Basically he has no control over his limbs which are very stiff and spastic. So I'm holding his butt up in the air, changing him, when he has an arc of pee that goes perfectly right to his mouth. He freezes. His eyes are going back and forth as his tongue darts out and he tastes it. He's completely still as he is processing WTF he is tasting.

When I told the parents what happened, they were good sports about it, and told me more about the little boy. He was born 4 months premature, so had a feeding tube from the moment he was born. He had never EVER had any food or drink orally...until that day. The first and only thing he's ever tasted was his own pee...thanks to me.

Condense the text into a few key points
<bot>: I was changing a kid's diaper when he peed in his own mouth...now the only thing he's ever tasted is HIS OWN PEE.