I adopted a shelter cat a year ago and from the first day I brought him home he has washed his feet in water, not to assist in drinking but getting his front paws soaked up to his elbows.
After cleaning up spilled water too many times I put his water dish in the tub. I watched him spill his water and dance all over the water. I also intentionally left the toilet lid up and there he was with his front feet in the water splashing like he was swimming. After he's wet enough he licks his feet and is happy but repeats this often.
Is this something I should worry about? Other than his foot washing he's a wonderful, happy cat. I couldn't have gotten a better cat. Teddy is 2 years old and was in the shelter for 3 months. I saw his picture online and fell in love with him.