There are always a few people who think there is a small chance detect hidden won't reveal someone stealthed in their home, which is absolutely false.Why not just use detect hidden before unlocking/relocking the table?
Detect hidden is 100% in your house....
Making sure you lock the door behind you, then a quick detect hidden is a fool-proof way to avoid someone sneaking in; the table barrier is just added security if you decide to carry your key with you during PVM/PVP.