Kiss of Deaf

I like to think I'm a good kisser, a connoisseur even, and as indulgent as I am of most manner of kooky behaviours, I've never been able to postulate a credible hypotheses for those who claim that kissing is highly overrated. In lieu of my apparent lack of understanding, I am willing to provide demonstrations, lessons even to the dubious in my desire to convert their scepticism to this sultry art....
Despite my ongoing fascination, devotion and unqualified scrutiny of the craft, I cannot claim to have left bodies strewn in my wake, requiring urgent medical assistance (well, once doesn't really count), but I have been reliably informed by the purveyor of all truth, BBC World, that it is indeed a most dangerous activity, with serious health and safety ramifications, one that needs bear a statutory warning and possibly third party supervision.
'Tis true, a young inhabitant of the world's greatest closed economy was left partially deaf after a passionate kiss from her boyfriend. Her left ear to be precise, now, no longer capable of appreciating the lilting cadences of the Guangdong opera. The china Daily exhorts "while kissing is normally very safe, doctors advise people to proceed with caution".
Apparently, the mega smooch reduced the pressure in her mouth to such an extent, that a natural re-balancing was required, and the eardrum the only thing handily available in that confined space to correct the imbalance. I am now trying to imagine just what the hell kind of a kiss this was, and have revised my oh my! position to a hmmm, this must be like kissing a vacuum cleaner. Or was it more blow than suck? Two things. (i) this has to be one of the better ways to blow out your eardrum (ii) any volunteers?