We have a cockapoo, 11 months now. Shes a gorgeous fluff ball of horror. I adore her, but is hard work. She's scared of scooters. She was scared of bikes but have put the hours in making the dcs ride their bikes up and down the street next to her until she calmed the fuck down.
She's scared of bigger dogs but always wants to run over to play with them, then panics. (Worried shes like father Dougal and doesn't understand small vs far away...)
She barks like a crazy demented thing if any of the following can be seen from a window: cat, squirrel, piegon, delivery people, the man who lives in the other half of our semi (his wife and kids are fine). She barks if ds puts his feet on the coffee table (I'm fine with her enforcing that rule TBF)
She is fussy about what she'll eat. She doesn't like anyone coming into our house, although is OK with dds friends as long as they provide snacks via dropping food.
She steals ds's dirty socks and hides them in her bed, and loses her shit if you take them back. She eats my work shoes. Only my shoes, only the expensive ones. She has developed an issue with my slippers and growls at them.
However, many dogs from many different breeds can be a dick. Im not sure if this is all due to being a cockapoo, or if she's just annoying.