Ghost Clicker and Random DC's

[Calculo]

I've had this problem for a month or so, where I would be doing whatever, normally near enemies, and random abilities would activate and my hero would walk towards the enemy pool incessently. Even skillshots would place themselves without ever moving my mouse. I try to go back to well, but I can never click fast enough to do more than just stand in place switching direction, and Insanitarius toggles itself on. This seems to happen with the worst abilities and items (ult, insanitarius) at the worst time (in middle of fight) and send me to the worst location (into middle of enemies). Can you help me?

Also, randomly (more often when I have background windows open), HoN crashes. I get an error report, it is a wall of text but I copypasted what looked important:

Identifier: com.s2games.HoN
Version: 2.6.8 (2.6.8.0)
Code Type: X86 (Native)
Parent Process: launchd [95]

Exception Type: EXC_BAD_ACCESS (SIGBUS)
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000005d80
Crashed Thread: 9

Thread 9 Crashed:
0 libSystem.B.dylib 0xffff0680 __bzero + 128
1 libGLProgrammability.dylib 0x914cf28e RegisterAdd + 96
2 libGLProgrammability.dylib 0x914cf1cf Registerify + 289
3 libGLProgrammability.dylib 0x914c7863 glpPPShaderLinearizeStreamMgr + 6861
4 libGLProgrammability.dylib 0x914c5687 glpPPShaderLinearize + 69
5 GLEngine 0x4349aa9e glePrepareShaderForEmulation + 52
6 GLEngine 0x43464099 gleSetVPTransformFuncAll + 409
7 GLEngine 0x434b7a97 gleVPRenderTrianglesSmooth + 94
8 GLEngine 0x433a61b3 gleVPFlushAtomic + 19
9 GLEngine 0x4341c71f gleDrawArraysOrElements_ExecCore + 1267
10 GLEngine 0x43424622 glDrawElementsInstanced_STD_Exec + 1226
11 GLEngine 0x434246de glDrawElements_UnpackThread + 81
12 GLEngine 0x4346740f gleCmdProcessorPTHREAD + 311
13 libSystem.B.dylib 0x98b08259 _pthread_start + 345
14 libSystem.B.dylib 0x98b080de thread_start + 34

[Calculo]

new development: while I was getting ghost-clicked, I got an invisibility rune- even though there was none nearby.

[emh]

Since no one else has replied, I'll bite. The only things I can fathom are an infra-red receiver (e.g. for remote control) + sunlight, or accidentally triggering some kind of macro program.

EDIT: and a11y tools/settings. Or a mod.