After living on the Tyendinaga Mohawk reserve in southeastern Ontario for nine months, he wasn’t looking to use TikTok to copy the latest dance routines. He wanted to highlight some First Nations reserves where clean drinking water remains impossible to find. So last January, from his account called @slapppps, Mcguire showed black water spewing from the pipes of his home. The video went viral, racking up 2.5 million views.