mice bonus level

I cannot get all the mice on this level! I've tried about 20 times and it looks like I just need one more. Any advice?

Is that the one where you need 33 mice?? In that case, stake out an area because they'll keep popping up in sets until the time runs out. I was able to get all 33 before the time was half done.

Another helpful tip is that you can pause the game when you hear the "squeak". That helped me get the last little fella.

I found the last one in the rabbit cage.

After about 15 tries I found the last one behind one of the flower pots on the tables. You can just barely see the ears.

I just can't do it

I am up to level 60, expert on all, but I just went back again to try to do these mice challenge levels, the first one between levels three and four. I'm always missing some. And if I just concentrate on the mice, I can't serve the customers.

I've managed everything else, but I can't do this one!

Can someone explain how they're doing it step by step, slowly, because I feel like an idiot! How often do you do mice and how often stop to serve customers? I'm so frustrated!