After the group's last tie in October, Liberia will not play a qualifying match for nearly two years - something that appears to have dulled Hey's enthusiasm for a job he only assumed in March.

BBC: Hey may quit as Liberia coach

It has the power to revive senses that have been dulled by the crushing predictability of recent movies.

NEWYORKER: Visions of Light: The Art of Cinematography

It's probably hard to plan a year off if your wits have been dulled by the Uniform Commercial Code and the Rule Against Perpetuities.

WSJ: Elizabeth Wurtzel: Tough Times for Big Law

Our senses have been dulled to the real world carnage.

CNN: America should see the Newtown carnage

If, on the other hand, you've heard "The Four Seasons" a few dozen too many times for your own good, then spending an evening with "Recomposed by Max Richter" might just have the welcome effect of reopening your ears to a time-honored classic whose beauties have been dulled by excessive repetition.

WSJ: Tuning Up a Masterpiece | Sightings by Terry Teachout

Fixed income traders have perhaps had their senses dulled by the Japanese earthquake.

FORBES: Rosy Jobs Report, Hawkish Sounding Fed Put Bonds On Defensive