“How I Met Your Mother” Stars Cobie Smulders And Josh Radnor Recalled The “Inappropriate” And “Gross” Things That She And Neil Patrick Harris Would Whisper Before Shooting Sex Scenes

Josh later added that he was often left speechless by Cobie’s crude remarks. “She would time it in such a way that she would finish saying [it], she would stick the landing, and they would say ‘action,’ and I couldn’t speak…They’re fond memories, but I also was immobilized by Cobie’s visionary,” he said.

Interestingly, Craig admitted that he — and the other HIMYM producers — had absolutely no idea that this sort of thing was happening on set.