The beginning of the end

Me:hey mum, Happy Mother's Day!
Mum:Thank you darling, how are you doing?
Me:Very excited! I have just bought an orbital sander to restore the dining table I have just picked up.
Mum:Well just be careful my love...
Me:Mummmmmmm... A sander is not really dangerous you know, unless you are really clumsy, you can't really hurt yourself.
Mum:I was not talking about that, I am concerned about your arthritis hun, as it vibrates a lot...
Me:...
Me (later):I guess that what it means to get older: when even your mum reminds you that your body is slowly but surely crumbling. As yes, I just turned 30 and yes, I have arthritis.