What would you rather have?  A bad substitute for a menu item?  Or have them say sorry we are out of that item.  How much does food quality means to you?  With a poor substitution for a menu item, does that hurt the reputation of that place? 

Plus the shout out to the one job that is under appreciated in the restaurant world.  The DISHWASHER a thankless job the make the whole operation run smooth.  Thank you to all the dishwashers out there......