Well I think I might teach my nearly 4yo how to use a phone.... we have 2 in the house... when my DD gets home i might do a role play. I'll pretend to "break my leg" and can't walk to the phone: "Can you get the phone for me darling?" (we have cordless phones). Then I'll do another role play with me outside... then one of me feeling sick in bed.... then one of me not being able to wake up. My 12yo DD will be able to help him/ prompt him. Maybe I should put a OOO sticker on the phone to remind him. Any other ideas?