blow up a hot-water bottle
... that it is possible – though potentially injurious – to blow up a hot-water bottle with your nose?
... that it is possible<span id="mwoQ" typeof="mw:Entity"> </span>– though potentially injurious<span id="mwog" typeof="mw:Entity"> </span>– to <b id="mwow"><a href="./Hot_water_bottle_blowing" id="mwpA" rel="mw:WikiLink" title="Hot water bottle blowing">blow up a hot-water bottle</a></b> <i id="mwpQ">(pictured)</i> with your nose?