Watson, a blocked thoroughfare in London fog requires a detour, not a blind charge. Observe the barrier.
Watson, forcing a jammed lock only breaks the key. Pause and examine the mechanism.
When the case demands it, Watson, we must brave the storm. Duty outweighs personal comfort.
A dead end is a dead end, Watson. Retrace your steps before the trap springs.
Even I require Lestrade's constables occasionally, Watson. Gather your allies before storming the hideout.
In the direst straits, Watson, unexpected assistance arrives. Accept the hand that pulls you from the mire.
When the trail goes cold, Watson, consult Mycroft. A broader mind clarifies the fog.