I saw my mother do something like this

     I'm not complaining.  I think it's pretty cool!

     After she had, obviously, been to Arby's to purchase some "buy one get one free" roast beef sandwiches, and after she had gone to another store (probably a "day old bread" store) to buy some burger buns, and after she brought all that home she took some of the meat off of each Arby's sandwich and spread it onto each of the empty burger buns.

     Did your Mom ever do something like that?