Cutting mirror with glass cutter...?

Hi,

I'm still learning a lot, so I don't know this - cabn a regular type of
mirror be cut with a plain glass gutter, like on can do with stained glass?
If not, does one need a special cutter? if it can be cut like "regular"
glass, shoud one cut it fromt eh glass side, or the coated side, and hoan one
keep tehcoating from chiping/flaking?

Also, can a a mirror be run trough a glass grinder, or does the coating
chip/flake off too badly?

Thank you in advance!

- Kris