
I'm having some DIFFICULTY bonding
with a colleague at work...
The Big Bang Theory Season 2, Episode 13

that you have DIFFICULTY
being close with her.
The Big Bang Theory Season 7, Episode 21

Does he have DIFFICULTY
maintaining erections?
The Big Bang Theory Season 9, Episode 23

Does it involve DIFFICULTY
initiating a stream of anything?
The Big Bang Theory Season 7, Episode 7

I have such DIFFICULTY
speaking to women...
The Big Bang Theory Season 1, Episode 6