The other day I accidentally grilled my instant meal because I selected the wavy grill icon instead of the wavy microwave icon on my combi-oven. Molten plastic everywhere :-/ It does have a knob for selecting the time though.

I get that icons are easier because you don't need to translate things for every country, but surely it can't be that much effort or expensive? My washing machine has text in Dutch and French, and it was one of the cheaper options.