As they get older they do calm down. Mine still wets in my hand every time taken out and when hand walks for some time before calming down. he is about 2 years old now. They need to be handled daily.

To slow him down when capturing or if you place on a table, place a hand like motioning to stop in front of him. Blocking his path. As he tries to go other directions, just slowly keep the hand in front of him. This will stop him from bolting across the table when you want him to just chill or around the tank when your grabbing him.

My granddaughter and wife place ours on their stomachs when sitting on the couch now and he stays as long as a hand is resting over him. Only once did he leap forward and grab my granddaughters nose :-)