It flies, it stops, it breaks

When you throw a clock out the window, what really matters is whether the clock hits the ground. Let me explain. The say time flies. When you throw a clock, that it does. However, if you throw the clock out a window next to an anti-gravity pad, you may find that time ends up suspended. This is bad for you. When time is suspended, you can't do anything about it, because so are you. So if you want time to fly, make sure that you aren't in the vicinity of any gravity-negating devices before you launch your clock out the window. The problem, however, becomes that if time does not end up suspended, it ends up broken. Broken time is bad too. You could end up anywhere in the past, present, or future, on any timeline. Good luck with that. Maybe you should avoid throwing clocks out windows in future, just saying.

Author's note: this was slightly more than 5min. The concept was down within the 5min, but it needed some editing and a decent conclusion, so I kept going.