It's important for a player to leave on the right note. Even if you're not happy to be going, or your relationships at your old club have turned sour, it is always best to be respectful. Thank the club and its fans for their support and the opportunity they gave you and leave with head held high.
As a quick, tricky player, I've been told that I don't go down enough because I've always tried to stay on my feet or I don't win clever fouls around the box. But when you are quick, the fastest way to be stopped is by being fouled so it happens to me a lot, even if I don't always maximise the opportunity.
The big players historically hold a lot of influence at Chelsea and while I would never doubt their attempts to win matches for the club, their levels undoubtedly change depending on how they feel about a manager at the time. They're either having him or they're not, and once they're not it spells borrowed time for the guy in charge.