Dear Prudence,
My in-laws cannot stand one another. They bicker constantly and couldn’t care less as to who witnesses it. Why they have not divorced is a mystery; my husband says it’s been this way his entire life. Each time they visit or there’s a special occasion, the event is marred by some inevitable blowup over a triviality—a shouting match recently ensued between them at a Golden Corral because my mother-in-law thought her husband was using too much ketchup. I want to draw the line and tell them if they can’t behave like adults instead of two petulant toddlers, they can forget about any more invitations or visits. My husband is against this and tells me to “just ignore it.” Am I so wrong to not want to have every get-together devolve into a near-throwdown?