Really. They are. I remember Moppet's Mom wrote a post long back about how Moppet wouldn't fall asleep one day and she realised that the moment she stopped singing, little Moppet was snoozing away to dreamland (now I'm too lazy to find that post and link up to it, sorry).
In my case, it was something similar but not as subtle. If I remember correctly, Moppet's Mom deduced that it was the singing that was preventing the baby from falling alseep. In Squiggle land, it was a bit more clearer. It was VERY clear actually.
I mean how can you mis-interpret 'No singing'. That's really clear isn't it. When your 22 month old says loudly at bed time 'No singing', and she says it right when you start singing, then I guess even the dumbest of moms would get it. The 'No singing' was meant for me!!!
Again I'm too lazy to link up, but in the early days, I had done a post raving about benefits of being a mom, one of which was the privilege of being able to sing without anyone asking me to shut up. Guess that was short lived! It only took 22 months :).