we've always put the luggage scales in our hand luggage and have not had one of those bag moments (had other bag moments for different things but I guess that could be whole different thread!). Now I'm nervous and will try to remember to pack them in future! It was after our tarmac experience that we bought the luggage scales 




but the benefit is that DD and her boyfriend are coming this year so we will have 4 suitcases to pack everything between