Almost spilled the beans!

So I have been very adamant about keeping baby's name a secret until he's born. Were having a son due November first and chose the name Simon. We love the name and didn't want any unwelcomed opinions to spoil it. Plus it'll add a nice element of surprise for our families come the big day. When we're alone we refer to him by his name to get use to it.

Anyways, we were at my in laws a couple weeks ago who had a toddler there with them. And my fiance looks at me and says "Do you think Simon will be this tall when he's one?" I froze. He froze. And we both slowly look over to his mom who was thankfully distracted by her phone and didn't hear! Phew!

We laugh when we got home. Anyone else who's keeping the name a surprise have a close call?