food agression

Question
I have a 1 year old puggle.  She can be the sweetest dog in the world, but not when it comes to her food.  We went to my sisters the other day and we brought my sisters dog a treat that my dog Sadie loves to see if Lola (my sisters dog)would love them also.  When i gave Lola the treat, my dog Sadie freaked out.  I thought she was going to kill Lola even though Lola is a black lab so she is bigger.  Sadie did this with my kids, so i taught my kids to stay away from Sadies dishes.  Now Sadie will not do it with my kids anymore but she is really bad when it comes to other dogs.  Any advise on how to put an end to this?  Also we have not got her spade yet becuase she was a foster dog in heat when we got her.  She fully understands that she needs to go potty outside because she will go to the door and bark when she needs to go out, but she still will sneak away and go to the bathroom inside about 5 times a week.  When i catch her she knows what she did is wrong so i dont understand why she is doing it?  Also she is humping all the time, i know i need to get her spade but will this help?  Every night when we get in bad she starts by humping the blankets.  Any help would be greatly appreciated.

Answer
Food aggression is an issue which will take some time to fix, but this sounds like more than just food aggession. my best suggestion is to consult your veterinarian for a referal to an animal behavior specialist who can work directly with you to resolve this issue. Avoidance may not be the best action, but I will not give you any advice other than to seek professional assistance. as this is the best thing to do. food aggression may stem from other dominance related issues, and this can turn into a major problem, which Cesar Millan would refer to as "Red Zone."
As many so call "Sweet dogs" which are not worked with properly, under the supervision of a animal behavioralist have gone bad.
If you realy care about your dog you should spend the extra money and deal with this potentally dangerous situation. If you really do not want to spend the amount that a behavioralist may charge then I suggest purchasing books like "The Other End of the Leash, or any other book by Dr. Patricia McConnell, an animal behavioralist in Madison, WI. You may also try Cesar's Way by Cesar Millan. but do not stop there you can also read Don't Shoot the Dog by Karen Pryor. or many other dog relationship/ training books. Which in the end could be more expensive, than a dog trainer who works with this kind of issue. Personnally I cannot give you any really good suggestions unless I were to talk to you in person and work with you on the issue, which seems to be more than just food aggression, but more of a relationship/dominance issue, of which food aggression is just one small part. The process of correcting this is not something that can be done over night, or easily explained here.