There's an Englishman, Irishman & Scotsman all talking about their teenage daughters. 

The Englishman says " I was cleaning my daughter's room the other day & I found a packet of cigarettes. I was really shocked as I didn't even know she smokes".

The Scotsman says " That's nothing. I was cleaning my daughter's room the other day when I came across a half full bottle of Vodka. I was really shocked as I didn't even know she drank." 

With that the Irishman says " Both of you have got nothing to worry about. I was cleaning my daughter's room the other day when I found packet of condoms. I was really shocked. I didn't even know she had a cock."