Here's a scientific question on infidelity. The likely scenario: The woman has intercourse, goes to sleep, showers 6 hours later, and puts on fresh underwear with a panty liner. Suspicious husband (me) grabs the liner from the garbage after she returns (14 hours after the shower), sends it in for DNA testing. Testing finds sperm, but only 3 cells, and they were somewhat damaged at that, so no DNA results could be obtained. Does this scenario sound plausible / likely? That is - is this small quantity of leakage likely, and would the DNA be damaged from the "overnight stay" in the body and the long car ride home in a warm place? Thanks!