an aircraft wheel inflated to 200psi is a bomb waiting to go off and many ground engineers have been seriously injured and some have been killed by hot tyres suddenly exploding for no reason,research has been carried out by the US navy on the destructive force in an exploding aircraft tyre and it has the equivalent force as the detonation of two and a half sticks of dynamite.
Fully concur ! Take a look at this video from 4:40 onwards. Don't ever go near a wheel if the flight crew advises u upon arrival to gate that the wheels are hot.
YouTube - Airbus A340-600 Rejected Take-Off test (subtitles)
Tyre pressure are one of the most overlooked aspects in a/c mx. I think most are in the false belief that since it's only used on ground, than there's not much importance. The Saudi incident that Northbeach highlighted is a good example of tyre pressure's importance. Most modern commercial jets with TPIS will have an advisory message in the cockpit highlighting a low tyre pressure to the flight crew if it detects low tyre pressure in any of the wheels.