My dog makes me laugh

[RevSmoke]

Why?

Well, she is a bright dog - part black lab and part shepherd. She is obedient and amazingly friendly.

But...
With fresh water in the bowl, she never fails to find water somewhere else.
In the winter, she eats snow. She won't drink from her bowl, but she rings her bells (we have some jingle bells hanging near the back door that she slaps with her nose or paw to go outside), goes out and eats snow and then stands by the back door waiting to come in.
When there is no snow, she drinks out of the toilet bowl.

As smart as she is, I cannot understand this ridiculous behavior.