My 68 Riviera had sat, covered behind a collector's house for ten years and I brought it home withe 69000 original miles. I felt it prudent to spray some lubricant in the spark plug holes before I attempted to start it. As I was spraying the fourth cylinder, the little red plastic tube attached to the spray can valve shot down into the cylinder. I said other words besides OOPS as well. I made a hooking wire and got my trusty penlight and low and behold, I saw it and was able to extract it with ease. Praise the Lord and thank you Jesus I said. The rest of my day was perfect.p