7x22 - Doug

Patti worries her Dad, Chad, is dating Edwina Klotz, so she does everything, including eating at Chez Honk to find out. Doug and Patti discover Chad is dating someone, but it's not Edwina. When she has dinner at the Mayonnaise's, Patti feels she is trying to replace her mother. Meanwhile, Doug finds out the truth about what happened to his pet goldfish as a kid.