Leopard slug hanging by slime thread

It was a bit of a shock finding this hanging on the inside of the door towards our garden. This large Leopard slug was hanging by a slime thread of about a meter long, and it was crawling down, producing large amounts of slime to extend its thread. Kind of like a very slow spiderman (top speed is 6 inches per minute, but only when in a hurry).

Reading a bit more about the species, it is actually almost always near human settlement, so it is not that surprising to find it.