Out for a meal with two colleagues, we get to the end of the mains and one woman pulls a little packet of blue and white interdental brushes from her bag and starts going to town right there at the table. She really got in there, even the back teeth, and occasionally stopped to examine the little brush and to wipe it on her dinner napkin.
Husband (who wasn’t there but heard the story as soon as I got home) agrees it’s gross but says it’s no worse than a toothpick which some restaurants go so far as to provide. I however think this spells the end of human civilisation and it also makes me more nauseous the more I think about it.