Answer:
I have four legs but no tail. Usually I am heard only at night.
If you're stealing honey, be prepared to receive vengeance in this form.
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
If you drop me I'm sure to crack. But give me a smile and I'll always smile back.
Round like a dishpan and smaller than a bathtub. But the ocean can't fill it. What is it?
People take me on walks and I run and have fun. What am I?