Too Old to Be Passing Notes!

I recently came across a note that Bart wrote to me during sacrament meeting on the day that Chelsea was blessed. It said:

"Mud
Sludge
Dirt
Grime
Dust
Silt
Slime
Sand

I just thought I would put some dirty thoughts in to your head. HA HA HA!!!"

Bart, being proud of his masterpiece, showed the note to his cousin Eric. On the back Eric, who was sitting by his mother/ Bart's aunt, responded by saying:"My mom says we're too old to be passing notes."

** What are YOU too old to be doing but you still do?