Examples:

• You can't go under the knife and leave me a note.
• If you have an opening, doctor, I am ready to go under the knife immediately.
• It's not the best time to go under the knife.
• You can't go under the knife and leave me a note.
• I am ready to go under the knife immediately.
• You want to go under the knife?
• The more I talk, the less I have to listen to you trying to convince me to go under the knife.
• They're really just looking for someone to talk to, and sometimes the best that we can do is listen and advise them not to go under the knife at all.