I had this problem before,,,but I think I know why, in my case. lol.
As I got my keys out to open my house door. I left my case and cues leaned against the wall just outside . It was late ,,it was dark and we had a thunderstorm that night.
Im pretty sure that is why my tips were wet ,,,,,as I dumped water out the case the next morning. It was a sad sight!!!
That is a true story ,,but back on topic.
2 days ago ,at a tournament. I was playing a match and had my cues leaned against a table by me ,,as opponent was shooting. I looked over and noticed the waitress cleaning my player cue with a soaking wet bar towel.
I ask her what she was doing,,,and that I didnt want her to do that!!! She said,,sorry I thought these were house cues!!!! LMAO ( my sticks are nothing like a house cue)
She didnt hurt a thing,,but I couldn't believe it!!! I have never seen this before ,,,ever!!! 30 plus years of playing pool. My shaft was soaking wet,,,,,but she didnt get the tip wet. Who knows what she would have done if I hadn't stopped her.