Crash, as in might stop responding briefly and then the app closes itself or sometimes it's just instant. Either way, the app quits on its own. I don't have to force quit it.
Not sure how much if this needs to be included, but here are a couple crashes:
Process: Messages [1073]
Path: /Applications/Messages.app/Contents/MacOS/Messages
Identifier: com.apple.iChat
Version: 10.0 (5500)
Build Info: Messages-601006001000000~1
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Messages [1073]
User ID: 501
Date/Time: 2016-11-18 10:14:47.358 -0600
OS Version: Mac OS X 10.12.1 (16B2659)
Report Version: 12
Anonymous UUID: 7389C24F-7331-2EE2-65ED-.............
Sleep/Wake UUID: 84AEF0E8-4B9C-4932-A5BD-.............
Time Awake Since Boot: 27000 seconds
Time Since Wake: 9800 seconds
System Integrity Protection: disabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Application Specific Information:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSPlaceholderString initWithFormat:locale:arguments:]: nil argument'
terminating with uncaught exception of type NSException
abort() called
--------------------------------------------------------------------------------------
Process: Cisco AnyConnect Secure Mobility Client [14797]
Path: /Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/Cisco AnyConnect Secure Mobility Client
Identifier: com.cisco.Cisco-AnyConnect-Secure-Mobility-Client
Version: 3.1.13015 (3.1.13015)
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: Cisco AnyConnect Secure Mobility Client [14797]
User ID: 501
Date/Time: 2016-11-18 08:23:34.895 -0600
OS Version: Mac OS X 10.12.1 (16B2659)
Report Version: 12
Anonymous UUID: 7389C24F-7331-2EE2-65ED-.............
Sleep/Wake UUID: 84AEF0E8-4B9C-4932-A5BD-.............
Time Awake Since Boot: 20000 seconds
Time Since Wake: 3100 seconds
System Integrity Protection: disabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000020
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler [0]
VM Regions Near 0x20:
-->
__TEXT 0000000000001000-00000000000bc000 [ 748K] r-x/rwx SM=COW /Applications/Cisco/Cisco AnyConnect Secure Mobility Client.app/Contents/MacOS/Cisco AnyConnect Secure Mobility Client