A modern man

One of my co-workers is very proud of being a modern and supportive husband. He often tells me how he helps his wife by doing chores at home, like cleaning and washing. Even though he is quite a senior executive, he decided to display his skills by washing the coffee cups. He loaded up the dishwasher and proudly marched back to his office. 
Later, when I went to make a cup of tea, I was greeted at the kitchen door by a huge bubble tsunami.
My co-worker didn't realise that dishwashers require a special detergent, and not ordinary dish washing liquid.