Carrying a heavy burden...

I managed to make it through town without incident, only for the bag to become tangled up in my spokes as I neared my back door, at which point I went over the handlebars, chinned the ground, and cut my face.

In German, there's a good saying for that: "Kurz vorm Klosett in die Hose."

Let's see what people come up with from Google Translate for that one.