Spontaneity - is it gone?

I can't remember what's the last spontaneous thing I've done. Guess I'm not the kind of a person who does things on a sudden impulse...

But why is that? Why can't I be the impulsive one? I always need to convince myself for a good half hour before I can do anything. 

I think it's just in the way we live. We live our lifes on a schedule, there's no time to do things that just pop in to our heads. We need the comfort what the beforehand planned week offers us. C'mon, if we did what we wanted, it would be anarchy on the streets! Everybody knows what happens on weekends, when we kick the gear to neutral and just let it go. 

Maybe next week I'll do something spontaneous. 

Is it spontaneous if I just said I'll do something out of an impulse...? Dunno...