Update volunteer agreement

Fixes https://jira.magfest.net/browse/MAGDEV-1283.

magprime/templates/staffing/volunteer_agreement.html

@@ -60,8 +60,7 @@ <h1>Performance Problems and Disciplinary Actions</h1>
 <li>Theft (equipment, supplies, money).</li>
 <li>Possession or use of a weapon.</li>
 <li>Racial, sexual, or other harassment of anyone involved with the event.</li>
-<li>Reckless or deliberate action that endangers the physical or psychological well-being of another person involved 
-with the event.</li>
+<li>Reckless or deliberate action that endangers the physical or psychological well-being of any person involved with the event, including yourself.</li>
 <li>Reckless or deliberate action that damages MAGFest property or property belonging to MAGFest partners.</li>
 <li>Reckless or deliberate action which damages the reputation of MAGFest.</li>
 </ul>