Translation of "Off-chance" in German

The truth is that we just come by on the off-chance.
Die Wahrheit ist... wir haben es auf gut Glück bei Ihnen versucht.
OpenSubtitles v2018
Well, I can't drive round Blackburn on the off-chance, can I?
Ich kann doch nicht einfach auf gut Glück nach Blackburn fahren, oder?
OpenSubtitles v2018

Related phrases

have no chance is there any chance not a chance no chance for
he had no chance did you have the chance more chances had the chance
is there a chance as chance would have it