4 round trips (which are all day trades) in 5 days will get you a PDT margin call, unless your broker's software automatically restricts you from initiating your 4th RT in under 5 days, as is with IB.
overnighters don't count. period.
if you get the margin call, you will be restricted to cash (means you have to wait 3days for transactions to settle, and have no margin at all) for (i think) 90 days.
write an e mail to SEC telling them to stay out of your business. gordon has the address...