Therefore, we really do hope that you will agree to participate.’ Sue continued, ‘As we have promised, you can refuse this particular study and be assigned to a different protocol, but I’d like to take a few minutes to try and persuade you to agree to RS204.’ By this point, my palms were starting to sweat a bit, and I rubbed them on my pants to dry my hands. ‘I’m listening,’ I said in a neutral voice. Sue spoke again. ‘One of our big concerns is that allowing too many people to opt out of any particular study will make our study sample much less random. As a result, the data gathered from that subset of the population may be less representative of the full population than a truly random sample would be. If the behaviors we are studying in RS204 vary greatly between people who want to refuse the study versus people who readily agree to the study, our data will be a lot less meaningful.’ I knew a bit about statistics, so I understood what she was saying. ‘Right, you might end up with. Craig firmly pulled down on the leash, until Cheryl's head was on the floor between Donna's feet."I think my feet need washing, don't you, slut?" Donna asked in a condescending voice. "Untie my shoes with your teeth, slut, then remove them from my feet. Don't get any teeth marks on them, unless perhaps you'd like another taste of the cage." Without a word, Cheryl's swollen and chapped lips went to work on Donna's black leather heels, carefully tugging them off while trying to keep her teeth out of the way. She then began lapping at Donna's feet, using her tongue on the filthy soles and sucking on each dirty toe individually, while Donna casually smacked her exposed back and shoulders with her crop. Cheryl could taste the dirt and manure from Donna's barefoot walk through the newly-fertilized garden just moments ago, but managed to avoid retching. She was being too easy, her mistress thought. Next time she'd have to dip her toes in fresh dog shit first. Donna leaned back and signed in.
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