Seen at my bank:
Please delicately suggest to your dog, cat, or guinea pig that he or she wait outside while you finish your bank errand. Don't imply that they wouldn't be more than welcome to help you deposit a paycheck, but rather, ask politely if they might be willing to better "help" you outside by keeping an eye on things. Depending on what they say, you may proceed inside the bank or you may be obligated to continue your pet's walk.
Never force your pet to do anything without his or her permission. Unilaterally imposing external guidelines on your pet may impair his or her development and dismantle self-esteem.