Mine

on *:text:!tb*:#:{ 
  if ($nick isop $chan) || ($nick ishop $chan) { 
    if ($3 isnum) { 
      if ($3) ban -ku $+ $3 $chan $2 Banned for $iif($2 > 59,$calc($2 / 60) minutes,$2 seconds) requested by $nick 
      else notice $nick and who should i ban..? !tb *nick* *time*
    } 
    else notice $nick and how long shall i ban him for..? !tb *time* *nick* 
  } 
  else notice $nick You need op or hop to do this! 
}