Answer:
At the sound of me, one may dream or stamp their feet, At the sound of me, one may laugh or sometimes weep.
What's as small as a mouse but guards a house like a lion?
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
Just head and foot yet never tires of dancing.
Slayer of regrets, old and new, sought by many, found by few.
What do angels sing in the shower?