And tipping in Scotland Dunky:
There are no hard and fast rules for tipping in Scotland. If you are happy with the service, a 10-15% tip is customary, particularly in a restaurant or café with table service. Tipping in bars is not expected. For taxi fares it is usual to round up to the nearest pound (£).
For the record I don't have time to get annoyed by things of this nature when I have bigger fish to fry, such as what am I eating for lunch . By the way, I think your way is better, but as I stated in my post (I guess selective reading is prevalent in Ireland as well) you should follow the customs of wherever you are. Now, I remember reading that you do tip, but those who say they will not tip here in the States shouldn't eat out when visiting. If you do, you are ruining it for the tourists who do tip because having worked at a restaurant in NYC I know that servers will be prejudiced and will dread serving you.
Tipping is expected in Ireland in most services. In restaurants, gratuity is usually included for larger parties but not for smaller. Dependent on the style and calibre of restaurant, tipping of at least 10% upwards is expected.
Hotel porters are usually tipped €1 a bag. Taxi's are usually rounded up to the next € or €. While barman do not expect tips, lounge staff (floor serving staff) do and €1 or €2 for a large round is considered acceptable.