Is the press from Talbot's Chainsaw optional

Talbot's Chainsaw
[Equipment] Equipment

[3 Pool]

Unique weapon.
Strike: 3 damage. If bearer is ready during your untap phase, a ready minion you control takes 3 unpreventable damage. Bearer cannot hunt. Bearer may enter combat with a minion controlled by another Methuselah as a +1 stealth action. Bearer gets a press, only usable to continue combat on the first round, and may prevent up to 1 damage each combat.

XZealot wrote:

Is the press from Talbot's Chainsaw optional?

No. [LSJ 19990823]

It only doesn't trigger if you've had your head,leg,it vitals targeted or if someone is whistling up your beast. And it's doubly not happening under terror frenzy. The surce is the minion using an equipment, so only trap or other external providers get around the mentioned stuff.