yonfi found cobwebs fascinating , mainly because they seemed to magically appear without anyone having actually seen the spiders spinning them ; he had tried to catch a spider at work many times , staring at the little things to see how fast they could weave their white yarn , but it was as if they didnt want him to see , like their webs were a secret and so yonfi had decided that they worked at night , when no one was around to catch them in the act .