As he came back to me I squatted at his level and asked him what he would do if he lost me or nanny in the store. He said he didn't know, so I laid down a few ground rules.
1. Don't leave the store.
2. Look for a saleslady or guard.
3. Tell them that you've lost your mom and give them your name.
(He's already memorized his name, address, and phone number.)
4. Give your mommy's name and describe her.
"Can you describe your mom?" I asked him. He gave a naughty smile: "Peeling face." NOOOOO! That won't do. (Maybe sometime I'll tell you all about that glycolic peel I went through last week.) I paused for a while, decided on a spiel then drilled him. After about 10 minutes he got it down pat.
Me: Describe your mom. How tall is she?
Miguel: Five foot two. Plus heels!
Me: How much does she weigh?
Miguel: 110 pounds. (Really, I'm only 107)
Me: How long is her hair?
Miguel: Shoulder length.
Me: What color?
Miguel: Dark, and straight.
(And the clincher...)
Me: Looks like?
Miguel: Rita Avila!
That ought to do the trick.