There are pranks - and there are pranks which could put your relationship at risk.
This, ladies and gentlemen, is one of the latter.
It comes courtesy of Canadian comic Nathan Fielder - he of drug text prank fame - and it all kicked off on Wednesday, when he asked his followers to conduct a little experiment with their boyfriend or girlfriend:
"Text the person ur dating 'I haven't been fully honest with you' then dont reply to them for 1 hr (& tweet pic of thr response)"
The results were extremely revealing, often hilarious and sometimes very explicit. Check out some of the best in the slideshow below: