It's probably more effective to leave a miniscule tip on the card slip (i.e. on record) and the real tip in cash.
I had a waitress that ignored us for 30 minutes. We were about to leave and then she came by to apologize. But rather than continuing to follow up, she ignored us for another 30 minutes.
I left a tip - one penny. I wanted her to see that I did not forget. I felt it was a more effective statement than leaving nothing.
Many states are allowing business owners an ability to take tips away from those who actually receive them from customers so that other workers can share in the customer's tip. Such allowances by these states that are allowing what is called employer required tip pooling, deprives customers of their right to determine for themselves who should receive their tip. When states interpret their laws as allowing employers to mandate that tips must be shared they are errantl;y and unconstitutionally depriving the customer of his constitutional right to liberty. You see, both the 5th and 14th amendment of our constitution guarantee that no person shall be derprived liberty. Liberty is defined as, freedom from external (as governmental) restraint, compulsion, or interference in engaging in the pursuits or conduct of one's choice to the extent that they are lawful and not harmful to others. You see, there is nothing harmful in allowing customers their choice of who should receive their tip. Clearly tipping is acceptable in our society for it is observed throughout our nation.
Our government, however seems to believe customers should not be afforded their liberty to choose for themselves who should receive their tip and has subsequently interpretted it's laws on tips in a manner which violtates the constitutional rights of the public by interpretting federal laws as allowing employers to mandate that their employees' must share their tips with other workers. When our government errantly determined that federal laws allow employers to mandate that the customers tip must be shared with other workers it unknowingly deprived customers of their right to determine for themselves who should be the recipient of their tip for their current interpretaion has allowed business owners an ability to take their tip away from their intended recipient so that it may be shared with others. It must be realized that not only is it the right of a customer to determine who will be the recipient of his tip it, it is also the responsibility of the customer to determine who will be the recipient of his tip. If customers want others to share in their tip, it should be incumbent on the customer to present tips to these other workers. No one can be expected to guess at who the customer intends to tip. Employer mandated tip pooling is not and cannot be allowed under federal law for it violates the constitutional rights of the consumer.