Batty Headlines

It may be just me, but the impression I get from this one is that someone's been engaging in some dubious sexual practices (what exactly is 'sandbag' a euphemism for, I wonder):

Meanwhile, this one:

even though the article to which it is connected does eventually provide an explanation for that p-word:

fails to achieve the task of a headline - to instantly let most readers know what the article is going to be about.