premise: He turned and left the room ; going back to find her still standing by the couch , working herself into a tizzy about her incredibly rude son . He lowered his voice , trying to sound pleasant once again . " Thank you for cleaning up after me , Mom . And I ' m sorry you had to find out about Michelle and me by finding her panties . " Why did Mom find Michelle 's panties ?
hypothesis: Because she was still standing by the couch .