Let me just start by saying that we never spell words in front of the kids. We find it easier to either a) just say the word and let them learn to deal with disappointment, or b) use a synonym they don't know. For example, instead of asking if we should go swimming at the Y, I usually ask if we should visit the aquatic center.
Tonight I randomly asked Dan if we should go to the p-a-r-k. Dan said no. The boys sat there trying to sound out the word I spelled and Molly ran up to me, "I go park. I go! I go! I go park! Now!" Oops. No more spelling. The girl was upset the rest of the night.
We did run to the store and when we got home she played outside in the puddle. Katie promptly ran inside, took off her pants, put on shoes, and ran back outside to join us. Some quality time outside.