Once in Business class CDG-EZE my wife and I were split so I suggested she asked the gentleman sitting beside her if he wouldn't mind moving to allow me to sit beside her - same seat only on the port side he didn't seem to mind although he wasn't exactly jumping for joy.

Once on the LHR-GLA shuttle I suggested to the Stewardess (before she had the chance to ask) I give up my bulkhead aisle seat for a seat way down the back so an old dear could have her loving husband next to her - the old dear was delighted and I got loads of extra drinks from the Stewardess.^