Considering Jamal is the oldest you would expect him to be the most mature one out of the kids but he literally acts like a toddler throwing a tantrum every 5 mins.
Here is an update on Sam's mediterranean Kabob room:
"Sam’s Mediterranean Kabob Room has long had its door closed. After the Kabob Room was featured in Kitchen Nightmares, there was an uptick in business, though ratings appear to have remained near the same as previously after an initial (small) rise in both foot traffic and ratings. Overall, Yelp shows before its closure in 2014, it closed with 105 reviews and 3 stars. Najjar, for his part, has suggested that while Chef Ramsay did teach him well in how to make food, his décor ideas did nothing to help the Mediterranean Kabob Room, and the location may have been the final nail in the coffin. Will we see another try, with a new location of Sam’s Mediterranean Kabob Room in 2018? Only the future can tell."