Gah! I forgot to mention in my workplace a colleague kept a pile of napkins ready on his desk for when I spilt my drink. On average I would do it once every two weeks...I just wouldn't notice it when I wasn't thirsty.
There was one amusing time when an especially enthusiastic arm movement--I was explaining something theoretical--sent my drink flying across the room after I forgot to grip.
*Edit* Napkins is not spelt with a K