No matter how ready you think you are, love will always come hurtling toward you and knock you over. I just recommend wearing flat shoes so you can try to keep your balance.
In the real world, I guess it's not always that easy. Usually, you're totally unprepared once the love bug bites you.
It's kind of like when you break a heel on your way to the car from the airport. Sure it's hard to walk the four blocks to your vehicle, but with a little gum and a G-ed up swagger you can make it with your dignity in tact.
It's all about staying on your toes.