It is can be risky making absolute statements, as they are liable to come back to haunt you - something new Chelsea striker Samuel Eto'o found out when he said he would never player for a Jose Mourinho side.
Eto'o once said something along the lines of preferring to sell groundnuts in his home village than turning out for the Stamford Bridge club after Barcelona were beaten by Chelsea in the Champions League.
He has now revealed, in an interview with The Sun, that it was not Chelsea in particular he disliked, but manager Mourinho - he has changed his tune since, however.
Eto'o moved to Inter Milan as part of the deal that took Zlatan Ibrahimovic to Barcelona and that meant having to work with the man he despised, which turned out to be pretty successful, what with winning the treble and all.
The 32-year-old was happy to admit he was wrong about the Portuguese and his now one of his biggest fans, so much so that he took a massive pay cut to move to Chelsea when it was clear his time was up at Anzhi Makhachala.
"I was talking about Jose — not about Chelsea," he said in The Sun interview.
“Before meeting at Inter, we didn’t know each other personally, so our relationship was tense. I even said one time that I’d never play for a club where Jose was coach.
“But God knows best. He wanted to show me that I was wrong and today Jose is a friend. Now he’s my coach again.”