We was walking towards departure gates in Stansted Airport terminal. Suddenly one of the MAC shop workers, she dropped pink nail paint onto my girlfriend's shoe & jeans. INSTEAD OF GO & BRING NAIL PAINT REMOVER, SHE WAS STANDING WITH STUPID SMILE ONLY, AFTER WE'VE ASKED HER TO BRING IT!!!!! We've also asked another shop worker for nail paint remover while explaining her, what's just happened. She told us carelessly something about going somewhere else to buy nail paint remover. Completely irresponsible shop staff!!!!! Brands like MAC should has all employers trained with level as high as their products are. VERY BAD EXPERIENCE EVEN WITHOUT BUYING ANYTHING!!!!!!!!!!