He was famous for rattling off 50s but less frequently turning them into centuries. Couple of memories:
I remember picking my car up from being repaired and when driving home I pulled over and parked up and listened to the Hussain/Thorpe partnership in the dark at Karachi.
I also recall being at Lords and GT was on 47 (Don't remember the opponents). I was busting for a wee but decided to wait until he got his 50. Eventually I could stand it no longer and went to the gents, and called in at the bar on my way back. When I retook my seat he was still on 47.