Of the polish people I have met there have been only two kinds. Uneducated and university educated.
That`s possible when you only depend on immigration contacts. To meet a broader spectrum, you would need to visit their native country.
But they followed the plumber about making his job really hard as there were 4 people In a tiny bathroom.
hahahaha I can perfectly imagine this scene.
However, how should they know that your 180-per-hour plumber was honest? Perhaps they already knew that British plumbers can be as shifty as any other plumbers in the world. Your plumber charged 180 per hour - are you sure he wouldn`t like to charge a double price if he ran into a naive client???
There are several cases of swindle plumbers every year