$max_wait   = ($wait1 > $wait2) ? ($wait1 > $max_wait) ? $wait1 : $max_wait : ($wait2 > $max_wait) ? $wait2 : $max_wait;

##</code><code>##

$max_wait < $_ and $max_wait = $_ for $wait1, $wait2;

##</code><code>##

for ($wait1, $wait2) {
  $max_wait = $_ if $max_wait < $_;
}