Bark bark bark

By your sig you maybe have chihuahuas? is very often that owners dont walk small dogs, do you walk your dog? if dogs dont get enough exercise then they get pent up energy and barking (even when is a lousy way) makes the dog feel they are releasing at least some of that extra energy, and they will find the most minimal excuse to do it

I don't own dogs under 70lbs....so, I have no input on small dogs, but, I know, as espencer said....if a dog doesn't have release, be it through exercise or working...that could be fun play also, the dog might have an excess of energy....and that can be bad news......

 Some bark collars do not use electricity - here's one: http://www.cantoneonline.com/nurseandnanny/store/html/product.asp?ProductID=1
If you are in danger of being evicted, or your dog is, then that might be an option.   Otherwise, here are some additional resources that might help:

http://www.clickertraining.com/node/1125

http://www.clickertraining.com/node/237

http://www.clickersolutions.com/articles/2001c/manicbarking.htm

http://www.k9events.com/behaviourB.htm (scroll down to barking section)