Try this!

*take a pillow*

*put it against your face*

and

*scream your heart out*

Result:

A muffled "ARrRRrgGGggGggGggHhhhhhhhhhHh!!!!!"

Warning: Might cause a certain amount of dizziness, people with low blood pressure / weak heart, or are suicidal might wanna stay away from this activity.

Thank you.