A Dutch cyclists lobby group plans to teach more people across the country how to steal bikes after lessons it conducted in the big cities showed that bike owners became more security-conscious after taking the lessons.

“Someone specialized in locks shows people how to unpick them. This teaches people how to better secure their bikes,” a spokeswoman for Dutch bike group Fietsersbond said on Wednesday.

About 700,000 bikes were stolen in the Netherlands last year, home to 18 million bikes. Bikes are the most common form of transport in the Netherlands.