Yet the Pontic soldiers' primeval attempt to survive was their own undoing.

Having enmeshed him, she confidently left him to complete his own undoing.

The second instrument had been the means of his own undoing.

In a sense, Phearson's file on the Cronus Club was his own undoing.

But, as usual, his effort had resulted in his own undoing.

But there are times when I fear he will be his own undoing.

Raj Ahten's endless appetite for endowments would be his own undoing.

And don't Nature tickle us to our own undoing morning, noon, and night?

And for these I loved her to my own undoing.

And just as surely he could vow she was working out her own undoing.

He could not have chosen a more opportune time to confirm his own undoing.

I would not have him lie, but he shall not accomplish his own undoing.

The moose's blind rage threatened to be his own undoing.

Wherefore this caution against me, but (pardon me) for thine own undoing?

So would she work in the late hours when revelry had worked its own undoing.

Thy will be done, though in my own undoing.