Block an Application for a certain amount of time Is there any application or any way to make me unable to open a software on my Mac for a determined amount of time (a self-imposed block)?

Why this? It's a poker software, and when things are going bad I want to exclude me from play for a certain amount of time (like 2 hours) to prevent the "tilt effect".

Thanks in advance!
Try self control. It blocks websites rather than apps, but if you know where the app resolves to (I presume its online play) then you can block its access.

Next best thing is willpower.