In Oct 2010, we went to celebrate DS's 10th birthday. On our last park day (it was a Monday), we went to DHS for EMH and, shockingly, it was dead. Before noon, we rode rode RnR 5 times and ToT 4. And, to keep things interesting, we alternated between the rides. Sadly, DW, who isn't exactly a ride freak, couldn't keep up and she bowed out after the 2nd ride of each.
On a side note, DS, DD, & I set our own consecutive ride record at Six Flags Great America. DW was out in Gurnee, Il for a business trip. So, we had a Disney-esque trip (re: spending 8 consecutive days in the park). School had started, so the mid-week the park was dead. We spent 3 hours riding the American Eagle, which is my personal favorite roller coaster, non-stop. Unlike at WDW, we could stay on the same train so long as there were open seats. So, if someone was at our gate, we simply had to move seats. I think we rode it 18 times in a row. It was AWESOME!