Paddy, not Patty (just in time)

[OC Richard]

Here you can see that from the 1930s to the 1950s Patricia was a top three girl's name here. Here "Patty" is a very common nickname for Patricia. So we have a vast number of middle-aged Pattys running around!

http://www.ssa.gov/oact/babynames/top5names.html

"Paddy" has long been a common term here for Irishmen in general. The police van used to round up drunks and rioters is called a Paddywagon. (How's that for a racial stereotype?)

So anyhow both Patty and Paddy are commonly seen here.