Tommy,
thank you for your words and of course you are right: I was trying to be humorous but Peter does not know me well enough, so...
It is true that he could have simply ignored my reply, and the fact that he choosed to write what he wrote tells me something more about his personality. Like in every other human interaction, when you meet someone who is new to the place you have to make up your mind and decide wether you are interested in deepening the knowledge or not.
One of my requisites to deepen a knowledge, even in this virtual world of the Internet, is a good sense of humor.