Now, everyone complains about US law firms running sweatshops but there must be something that attracts lawyers to joining the US’ legal big guns – or perks, to give it a name.

For instance, Cravath lawyers get a discount at Tiffany’s, Wachtell Lipton attorneys get free cookies, Covington & Burling hold ‘beer and candy nights’, while Willkie Farr & Gallagher has an attorney lounge with flatscreen TV.