What If?

What if?
The train's late,
The bus doesn't wait,
You don't close the gate,
You don't think straight?
What if?
The window's ajar,
You don't go as far,
You visit a different bar,
Crash into another car?
What if?
You miss your stop,
Avoid that cop,
Go into a different shop,
Wear another top?
What if?
You don't stop to think,
You swim not sink,
You wear blue not pink,
You don't refill your ink?
What if?
You spill some red,
You take someone else to bed,
You bang your head,
Your pet isn't fed?
What if?
You make a mistake,
You find someone fake,
You have a different namesake,
You don't give that a shake?
What if?
The options aren't the same,
You're not quite as tame,
You get your chance at fame,
You don't play the game?
What if?
You open a different door,
There's a new law,
You tell what you saw,
The ice doesn't thaw?
What if?