The molecules in the air must encounter electrons to create a spark. This will sometimes happen with no warning, such as when you receive a shock from touching a doorknob.

When Columbus landed he found Indians

There is no specific protocol for touching an elf, but it's important to remember that elves are fictional beings from mythology and folklore. If you encounter someone dressed as an elf or in a character costume, it's polite to ask for permission before touching them. Always respect personal boundaries and be mindful of others' feelings and consent.

The protagonist in "Touching Spirit Bear" is Cole Matthews, a troubled teenager who is sent to a remote Alaskan island as part of a healing and rehabilitation process. Through his experiences with nature and an encounter with a mysterious bear, Cole undergoes significant personal growth and transformation.

Yes, there is a preposition after the verb "encounter." For example, you can say "encounter with," "encounter in," or "encounter at" depending on the context of the situation.