Re: Carnival's *pre-paid* gratuities
Yes, you can have your tips removed and no, they won't grill you.
There is a list kept of the people who have "automatically" tipped, so yes, your room steward as well as your servers have a way of knowing who left the auto tip and who removed it, as well.
I am hopeful you will find that the $10 per person per day is well earned and tip accordingly at the end of your cruise. The purser will be more than happy to provide you with envelopes for tipping.
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