For some reason I associate Peter with a peacock spider. Yes, they don't make webs, but that's not the point. It's about character.
Peter in ATSV is wearing a bright pink robe, while the peacock spider is waving his bright belly. Peter is very talkative, tactile, he is constantly around everyone, especially around gloomy and scary Miguel; the peacock spider tries his best, dancing and waving his paws, because otherwise the female will simply eat him.
Will Miguel eat Peter? Probably not. But that doesn't mean he won't bite.
Damn, I love biology.
Those who have not yet seen how peacock spiders dance - take a look. It's unbelievable.