No Touching!

Having kids now, I can definitely see implementing these in the near future:

http://awkwardelevatorinc.com/post/53763706191/i-updated-my-technique-for-showing-my-sons-which#notes-container

or even this:

http://bestnatesmithever.tumblr.com/post/12327245572/i-came-up-with-a-new-way-to-show-my-son-which&usg=ALkJrhiq6JQcHSMsbjRE9EYoXFW4BKVhnw