I had an observation/question while i was watching buffy last night. ****SPOILER ALERT SEASON 2**** During the episode "Passion" when Jenny Calendar died. Angel had gone into Giles' house and made this whole setup with Jenny Calendar's dead body on his bed. How did Angel get into Giles' house if he had never been invited? I went back through the episodes prior and never came upon Giles inviting Angel into his house????