When was the last time you were "spontaneous"?
When was the last time you did something, anything, you haven't tried before?
Spontaneity is one of the little joys of life. It is breaking out of one's daily routine and doing something "extraordinary". It is embracing possibility and accepting free will.
Give it a shot. Take the scenic route home instead of that quick detour. Call up that long lost friend you haven't spoken to in years. Write a poem. Sing in the shower. See how a little thing can make a big difference to your quality of life.
For god's sake, don't turn complaining into a science. So what if the food's a little too hot or the tea's a little too cold. So what if your boss is a jerk. We all know people who complain. You know who you are.
Here's a thought: don't sit around and complain about everyone else. Go out and be successful instead of complaining about everyone else who is.
BE SPONTANEOUS! Stand up, put on a sombrero and do the "YMCA".