If you are a gun owner and one of the estimated 1 in 10 Americans who suffer from depression -
http://1.usa.gov/T4Ud9J - or the 1 in 4 who suffer from a mental illness of any kind -
http://1.usa.gov/Yeeai4 - you need to relinquish your weapons, have a third party secure them until you are better, or stop calling yourself a "responsible" gun owner. I sincerely hope you get all the help you need, but people who are not in control of their faculties should not be in the possession of guns. That is not responsible.
If you live in the same household as someone who suffers from depression or mental illness, you should relinquish your weaponry or secure your gear in an appropriate gun safe at the very least. Responsible people do not leave guns l...ying around the home so they are accessible to those who suffer from mental or emotional instability.
Bars and homeowners are routinely held to account for the people who drink under their roof, hop behind the wheel of their cars, then get in an accident and hurt or kill someone.
Your responsibility as a gun owner is no less than that of the person who serves tasty treats.