What have Wii done?

After my purchase of the wii, we have, of course been very busy. The in-Laws came over today to look after the boys while I went to work. After the boys were asleep we introduced the in-laws to the joys of wiiing.

Have wii put a strong 45 year marriage on the rocks? My M-i-L took great delight trying to slice her one and only son's head off in sword-fighting and my F-i-L was driven to distraction with the table-tennis as he got resoundingly beaten. They have both gone to bed in a fit of pique as M-i-L lost by 2 points to F-i-L n the bowling. They want to buy one now. They are both 70.

What have wii done?