Answer:
I tell people to be careful when handling boxes.
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
Use me to reward good behavior.
I know a word of letters three. Add two and fewer there will be. What is the word?
The Titanic is still here.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?