Don't worry your arnt the only one
I caught myself reading a science encyclopedia yesterday...and the kids were no where to be seen!
yep I am a nerd too. Oh and my kids are too...thankfully at their school it's considered Perfectly acceptable to be a nerd. They really follow through on their effort brings rewards philosophy.
The only time we find it a problem is when we go out to dinner and they choose MEP math sheets instead of colouring in to do while we wait. ( seems to be perfectly acceptable if we go out for Chinese mind you!) maybe we could colour some atoms next time instead.