Wearer of medical mouthguard with heart ;-), because NOTE:
<ol><li>you're not doing anything in the wrong!</li>
<li>you “wear” a mouthguard, and</li>
<li>if someone demands you, and it's absolutely necessary to wear it before your mouth, take the mouthguard off your heart and cover your mouth and nose</li></ol>
<a href="//commons.wikimedia.org/wiki/User:Andreas_Plank" title="User:Andreas Plank">Andreas Plank</a>
<span class="int-own-work" lang="en">Own work</span>