I don't like things that make me think because sometimes I don't like the things I think about. I tell myself I need to "think of a different thing" but then the same thing pops up and gets me to thinking 'what if I get my brain right to not think or to think of things I will not remember'? Too often, when I am trying to get to sleep, the things come to bother me and make me think about them and they will wake me up and these things are impatient and want me to think about all of them. And some things are sneaky. You think about it and think that's over but it hides and waits to come back and asks "are you sure, don't you want to think about me some more"?
Ever played the "how did we get here" game with your friends to connect the dots on how you got onto the subject you are discussing? I do that all the time, alone. Trying to trace your own thoughts is a real exercise in how your stream of consciousness can serve you when you allow it to take over and flow freely. But that will not prevent the thoughts you are trying to avoid from showing up, it is just a more interesting path that will take you there.
But I must say, most of the things mentioned here didn't make me think about them, they made me glad I wasn't thinking about them because I just don't know what to think of them. I am more into the things that make me think about other things. And I am very lucky in one regard, I am unable to think about something for an extended period of time before the next connection kicks in.