you guys all know teagan has aggression issues.

she also doesn't obviously give off warning signals. she will not vocalize until she's been thwarted in a charge, and then she will bark.

i like to not step in sometimes in the house, if she sees a dog out the window, or remove her but not have her do anything else (normally we do an obedience routine), just to see how she's changing in her base behaviour.

when we first moved here, if she saw a dog, she would whine, then run around the house and throw herself at the window (eta: while barking). now, she will whine and then bark. if i take her away from the window she will pace and whine/mumble excitedly. so she has improved in her base reaction there.

last night, outside, she did something i've never seen before. we walked out the door - we live on a corner, NW side - and she saw someone on the SE corner - i'm not sure if they had a dog, i couldn't see one, but there was a shadow that i thought might be - anyways, teagan barked immediately - unusual - and then strained a bit at the leash but was easily distracted over to the potty area. she kept an eye out once there, and barked once more. i should note she never barks at people out on the street.

should i be reading anything into this change? a one-time thing? or some other shift, maybe we are making progress and she's starting to more obviously react? it was just so outside of her normal behaviour pattern. and i thought, maybe it's just a one-time reaction, but then on the otherhand, maybe this is a good thing, that she's giving more obvious type reactions/warnings, and if so, should i encourage the warnings while discouraging any aggression? how would i do this? or am i totally overthinking this? i'm just wondering if there's an opportunity in it.