An arrhythmia is an irregularity in the rate and/or pattern of the heartbeat. Dogs of any age or sex may experience arrhythmias. Rhythm disturbances may be caused by many factors, including diseases, drug reactions, and underlying heart conditions.
Tipping Policies for the Major Cruise Lines. Carnival Cruise Lines â Carnival adds a tip of $11.50 per day, per guest for crewmember services, other than bartenders. The full amount is added to onboard accounts on the second day of the cruise.
Tipping and Service Charge Policies on Some of the Major Cruise Lines. 1  Carnival Cruise Lines Tipping Policy. 2  Celebrity Cruises Tipping Policy. 3  Crystal Cruises Tipping Policy. 4  Cunard Line Tipping Policy. 5  Hapag-Lloyd Cruises - Tipping is not obligatory on board. Acknowledgment of particularly good service is at the discretion of each guest.