First off this post is not a complaint, it's an observation and I'm curious as to what others have experienced/observed.
My wife and I recently opened a take out place and since we are 90% take out didn't expect much in the way of tips, however our customers have surprised us.
Over the past couple of months I've noticed that when my wife takes orders, she almost always gets a tip from male customers, and almost never from female customers.
When I take the orders, male customers are more likely not to tip, or just round up to the nearest whole dollar, while female customers will in general leave larger tips.
Have others seen this, or is it just my imagination?