I have noticed something about Scotch Tape. Whenever you need to wrap a present you can't find the roll you _know_ you just bought when you wrapped presents last time.
Here's my theory. Parallel Universes exist. Our universe is the only one that's capable of sustaining Scotch Tape. However, tape is such a amazingly useful item that people throughout the Multiverse (two points to whoever catches the author reference) cry out psychically for it. They succeed in doing this. Therefore when you're not looking your Scotch tape zaps through space/time in order to supply sentient beings everywhere with transparent sticky goodness.
Here's my theory. Parallel Universes exist. Our universe is the only one that's capable of sustaining Scotch Tape. However, tape is such a amazingly useful item that people throughout the Multiverse (two points to whoever catches the author reference) cry out psychically for it. They succeed in doing this. Therefore when you're not looking your Scotch tape zaps through space/time in order to supply sentient beings everywhere with transparent sticky goodness.