WAHM?

My friend Mary gave me this book as part of a shower gift:

This book just taught me that when I return to work after maternity leave, I will be a "WAHM," or a work-at-home mom.

Then I realized that, with a simple letter switch, I would be these guys:

I have no idea why this is so hysterically funny to me, but I am still laughing about it. I think I'm really tired and need to sleep all weekend. Anyone agree? :)