I loved the whole of the Hot Springs episode. One favourite moment of mine was when the glasses guy (forgot name) could 'see', which was a direct spoof off Gundam Seed, with panties! I couldn't stop laughing on that one.
Oh yeah, I also liked the haunted hospital episode, the part with the floating head. The fact that Sagara was so ignorant to something so obviously weird is too much. The next part where Chidori scolded the 'ghost' was the icing on the cake