February 29 proposals

The Mr looked a bit pale this morning when we woke up. I had a few things to ask him, he started to shake. It was then that I realised it was February 29 and the poor lad thought I was about to propose!
Over the last few weeks several friends have suggested I pop the question, but it just seems a bit wrong to me.
Firstly, if I wanted to ask him to marry me I wouldn't wait to be told what day I could do it.
Secondly, if you do the asking what happens about the ring!!! You can hardly ask them and then say, "Right then, let's go get me a diamond". And I'm certainly not intending on buying my own!
Another thing is that I am curious as to how he will go about it when the right time comes. Will he go down on bended knee in the middle of Paris or will he simply pop the question after a curry on Saturday night?
We'll wait and see, probably a long time too.