Someone

on *:TEXT:!heads*:#: {
  var %heads = $rand(1,2)
  if (%heads == 1) msg $chan $nick wins yay :)
  if (%heads == 2) msg $chan $nick loses heh.. :\
}

on *:TEXT:!tails*:#: {
  var %tails = $rand(1,2)
  if (%tails == 1) msg $chan $nick wins yay :)
  if (%tails == 2) msg $chan $nick loses heh.. :\
}

on *:TEXT:!coin*:#: {
  var %coin = $rand(1,2)
  if (%coin == 1) msg $chan The coin was heads, $nick wins
  if (%coin == 2) msg $chan The coin was tails, $2- wins

}