[@wheels] Twas a night, I agree, and I brought that up to my boss as well, so now we do have a sign right out front stating such.  Unfortunately, we can't lock our doors since everything is in one building.  The kitchen is just right behind the register.  This isn't the first time we've had run-ins with wackos.  I apologize for using such crass language, but if it looks like a duck, well you know the rest.  We've had our fair share of crazies coming in after hours but nothing as threatening as this guy.  Luckily, he didn't resort to violence, but I'm still shook up by what happened.  You never know, especially in this day and age.  I own a firearm and have a permit to open carry (Yay Texas!), but no weapons are allowed on store premises.