This song is really easy
E|-|
B|-|
G|7|
D|7|played entirely while melvins screaming i gotta pee
A|5|
E|-|
On the "Call 911" part it goes
[ Tab from: http://www.guitaretab.com/n/nofx/85442.html ]
E|--------------------------|
B|--------------------------|
G|22-xx--------33-xx--------|
D|22-xx-22-222-33-xx-55-555-|
A|00-xx-22-222-11-xx-55-555-|
E|------00-000-------33-333-|
. .
E|---------------------|
B|---------------------|
G|22-xx--------33-xx---|
D|22-xx-22-222-33-xx-5-|
A|00-xx-22-222-11-xx-5-|
E|------00-000-------3-|
. .
