Yes - for several reasons.
1. To demonstrate reverence to the Blessed Sacrament.
2. If you receive on the tongue from a priest but in the hand from a EEM, you will forget and hold up your hands to the priest. Guaranteed. (That's when I decided I was not going to make distinctions and just receive on the tongue.)
3. Maybe you'll gross out the EEM and he (more likely she) will quit. < j/k >
LOL! Yes, it does freak them out. I realize that's probably not the right attitude for approaching Communion, but still...