Never under estimate kids.
There are small gun safes on the market that will hold one or two handguns. There are models that require a fingerprint or a combination that can make hand gun available to you in a hurry if the need arises.
Check the web sites of Cabela's and others for the hand gun safes.
If your city/state requires gun locks even while the firearm is in storage, good luck on protecting yourself and your family.
Funny you should say that. The Cabela's flier just came and micro biometric hand gun safes are on sale this week.