Scare a Bear

Do you know how to scare a bear? Would you bang pots and pans? Would you rattle some cans? Would you shout? Would you yell? Would you ring a loud bell? Do you know how to scare a bear? How would you scare a bear out of your cabin? Or out of your fishing boat? How about away from your campfire? And what if he climbed in your bunk? Would the bed go kerplunk?