Hayden's First Sentence!

Tonight Hayden put two words together for the first time to form a short sentence.  We were at home depot browsing around the gardening section waiting for some paint to be mixed up.  Hayden was helping me pick out a watering can and Matt found a comfy swing to hang out in.  All of a sudden, Hayden put down the watering can, started looking around, put his little hands up in the air in a questioning stance and said "where's daddy?" clear as a bell!  I was so surprised but thought maybe I was just hearing things.  Later when I picked him up from the church nursery he did the same thing.  I told Matt what I thought had happened and he replied "when we were in home depot I thought I heard him say 'where's mommy?'!" I was tempted to ask Matt exactly at what point in the Home Depot visit that took place so that I could deduce which was actually his first sentence, but I guess it doesn't matter either way :)