 Don't spray it directly on the vehicle. Put it on a paper towel or something you're happy to throw away. And wipe down all those rubber seals. And look very closely once you get the dust and stuff off them and get them clean. I mean, this does two things. One, the silicone helps re-injuvenate the rubber seals. Makes it less likely in winter they're going to freeze and stick. But also, as you're wiping it down and cleaning it off, if there are hidden splits or cracks...