Saint Bernard
To see a Saint Bernard in your dream implies that an aspect of your self is need of rescue. You are calling out for help in some way.
Guinea Pig
To see a guinea pig in your dream represents your need to be more responsible and attentive. Alternatively, it suggests that through experimentation and taking risks, you learn how and how not to do something. You learn from your mistakes.
Warrant
To dream that a warrant is being served on you indicates that you will be involved in some important matter or decision. Consider the type of warrant that is being serves. If it is a search warrant, then you need to take a second look at your motives and actions. If it is an arrest warrant, then you need to stop what you are doing and take a different course of action.