Complex sentence: As Yarmouth was a big fan of Peel in the 70's and wanted to meet him, they went to Peel's apartment and thw meeting ended with Peel and GG arguing, while Allin and Schlock urinated on Peel's apartment door in response.
Split into simpler sentences: As Yarmouth was a big fan of Peel in the 70's and wanted to meet him, they went to Peel's apartment and the meeting ended with Peel and GG arguing. As they left, Allin and Schlock urinated on Peel's apartment door in response.