Answer:
The negative hero in each story
The profession of Jimi Hendrix and Eric Clapton
A tasty reward given to well behaved dogs and kids
Other terms for this handy device include doohicky, doo-dad, and whatchyamacallit.
What falls down but is never injured?
Why was the cook arrested?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?