Most annoying pokemon in Black/White

[Mr Khan]

lestatdark said:

Frigging Tranquill and Unfenzant using constant Detect, makes me waste valuable PP, especially since the AI pokemon always seem to get 2 to 3 Detects on a row.

Sturdy doesn't phaze me a lot, given that most Sturdy related pokemon are either Rock or Ground, and Scald's 20% to cause Burn can take care of it.

I thought Detect couldn't be used more than once consecutively, or is that Protect?