I get to review a lot of scientific papers which aren’t always written in the best English. In fairness, it isn’t easy to write in a language which isn’t your own, especially some of the oddities of English grammar, and there is no way that I could write anything in another language. However, this spam email from a proof reading company made me laugh. Most (but not all) is technically correct, but reads very oddly. Any prizes for finding the mistake?