The UK has become a "global laughing stock" according to Jürgen Maier chief executive of the UK branch of German engineering firm Siemens. He's written a letter to MPs urging them to get their act together over, what else, Brexit.
He says it's taken 45 years to shake off the "sick man of Europe" image the UK had in the 1970s and now we're at risk of trashing it all.
Siemens has several manufacturing sites around the UK, but the board wouldn't have much truck with making new investments now, he says.
"If I were to go to my board today and say here is another factory I want to open today with an investment 100 or 200 million, I can tell you, with this turmoil right now, we would not be putting that over the line."
Mr Maier says laughing stock or not, there's nothing funny about the situation.
"We just need a solution that will move us forward and that will unlock significant investment from companies like mine."