The West Ham defender has been discussing his manager's style of coaching.
And the 27-year-old admits the Croat can often get angry at half-time.
Tomkins, however, is also a fan of that approach. Indeed, he believes the West Ham team - and every other team for that matter - needs someone who can kick the players into gear if they aren't putting in 100 per cent.
Tomkins told the Mirror: "To be honest, you want to work for him and you want to do the best for him.
"You want to do everything the best you can anyway but having a manager like that gives you an extra incentive to try a little bit harder.
"Don’t get me wrong he can get angry at half-time if you don’t put in a shift. But that’s what you want. You want someone to go, 'hold on a minute, we need to liven up here’.
"He picks and chooses the right times to put his arm round you or not. So, for me he’s done really really well."
The Hammers faithful will no doubt hope their players don't need an angry talking to at half-time against Arsenal on Saturday afternoon.
It's everything to play for as far as West Ham's Champions League hopes are concerned this weekend.
As good as the east London side have been - and as unlucky as they have been with decisions, injuries and so forth - defeat to the Gunners would be a massive blow to their chances of finishing in the top four.