I have been to Jamaica several times, but I have never encountered security issues, maybe because I did not spent much time in Kingston. There are other nicer places like Ocho Rios. I hope you will go back to Jamaica and see other parts.
The jersey and shoes were used during the early rounds, not the run when he recorded 9.58 seconds; he signed them with the writings of the time for the restaurant.
ちなみに言葉はパトワ語です。wah gwaan は ワーグァン って言います。プラタノでなくプランテンです。危ない危ないって言うこのyoutubeと普通にジャマイカで生活して楽しんでるzanda mi zenda z のyoutubeとの温度差が面白いです。ボブマーリー博物館はほんといいですよね。(私隣のマンションに住んでます)ラム楽しんでてよかったです。