I agree -
We are always dressed for dinner before we go to Bingo though that doesn't always help.
On the 8/16 cruise, Andy (the Bingo King) had the night off so his fill-in (Shi Shi) was calling Bingo -- though she claims it was her first time, I later found out that wasn't the case. Long story short, Bingo ran until 9pm (yes, it started at 7:45). We felt so bad for keeping our table mates waiting that we felt it would be inappropriate to go that late and try to catch up.
We ended up missing the entire Mexicalifragilistic..blah, blah, blah dinner and ate room service -- big disappointment but I would assume that this is not the norm for Bingo (it never happened to us on our prior cruise).
So....be ready for dinner!