On our 25th anniversary, I took some flowers into the shop where MrsS worked and gave them to her ... a couple of the other women who worked there came over right away and asked "what's the occasion" ??
Our anniversary, we both said ... "oh, how long have you been married"? one of them asked ...
Me: "15 happy years"
MrsS: "25 years"
The women looked from one to the other in confusion, then one got a bright expression on her face and said "oh, I get it" ...