Because We Are Stupid

So, in a DIY shop today getting some seeds to sow and I saw this attached to the petrol lawnmowers.

Now, don’t get me wrong, I understand that some people are lacking a bit in the grey matter but SERIOUSLY? People are so moronic that we have to tell them to put FUEL in a petrol motor before using it?!
Someone stop the planet. It’s time for me to get off.