Oh I am being so bad'. Crate training is recommended for puppies but there are very specific do's and don'ts. Never abuse the use of a crate. Never expect a puppy to hold it any longer than they can. If your gone for 8 hours, you will find a very soiled crate and puppy.
Some people gate off the kitchen with newspapers.
This is fine as well. Do not leave a puppy in a small bathroom with the door closed. This is cruel and can cause anxiety attacks. An aging Pug may have more frequent accidents. Try using a diaper during the day when your gone and at night.