diff --git a/README.md b/README.md
index 508f9ebaf28126e0412fc8d20fb92be6bb0da097..9b6501e54503b5e1e0b91b079043977728a5310c 100644
--- a/README.md
+++ b/README.md
@@ -204,6 +204,13 @@ You can directly submit pull requests for documentation changes.
 
 * [RelatedProject](https://github.com/wechaty/wechaty/wiki/RelatedProject)
 
+# Todo
+
+* [ ] Use Dependency Injection for FriendRequest(etc)
+  - https://github.com/young-steveo/bottlejs
+  - http://jonnyreeves.co.uk/2015/basic-typescript-dependency-injection-with-decorators/
+  - https://github.com/connorwyatt/Fluency-Injection
+
 My Story
 ----------------
 My daily life/work depends on too much chat on wechat.
diff --git a/example/speech-to-text-bot.ts b/example/speech-to-text-bot.ts
index c7e4efc277c7b83f6c2fcf3b71326f7c593bf4a4..6582f234e38d285e27f5823c59256673dbaf8838 100644
--- a/example/speech-to-text-bot.ts
+++ b/example/speech-to-text-bot.ts
@@ -148,7 +148,7 @@ async function wavToText(readableStream: NodeJS.ReadableStream): Promise<string>
       try {
         const obj = JSON.parse(body)
         if (obj.err_no !== 0) {
-          return reject(new Error(obj.err_msg))
+          throw new Error(obj.err_msg)
         }
 
         return resolve(obj.result[0])
diff --git a/src/puppet-web/event.ts b/src/puppet-web/event.ts
index a3a22f3bc3724199d804cf67b4efe90ceba874d9..818a624c1d291995f23608c2da6c9050bf0f2866 100644
--- a/src/puppet-web/event.ts
+++ b/src/puppet-web/event.ts
@@ -121,11 +121,11 @@ async function onBrowserDead(this: PuppetWeb, e: Error): Promise<void> {
 
   log.verbose('PuppetWebEvent', 'onBrowserDead() new browser borned')
 
-  // why POISON here... forgot, faint
-  this.emit('watchdog', {
-    data: `onBrowserDead() new browser borned`
-    , type: 'POISON'
-  })
+  // why POISON here... forgot, faint. comment it out to treat dog nicer... 20161128
+  // this.emit('watchdog', {
+  //   data: `onBrowserDead() new browser borned`
+  //   , type: 'POISON'
+  // })
 
   return
 }
diff --git a/test/puppet-web/puppet-web.spec.ts b/test/puppet-web/puppet-web.spec.ts
index 4abdfaccf5f53085baafd5bc82b5d296b146c8f9..4228e234682c80cfd8634bde10951898484c32dd 100644
--- a/test/puppet-web/puppet-web.spec.ts
+++ b/test/puppet-web/puppet-web.spec.ts
@@ -18,7 +18,9 @@ import { Server }     from '../../src/puppet-web/server'
 // import { spy } from 'sinon'
 
 process.on('unhandledRejection', (reason, p) => {
+  console.log('!!!!!!!')
   console.log('Unhandled Rejection at: Promise', p, 'reason:', reason)
+  console.log('!!!!!!!')
 })
 
 /**
diff --git a/test/puppet-web/watchdog.spec.ts b/test/puppet-web/watchdog.spec.ts
index 8a94e441bdbefcea138e2ff8c1bbe005e7b22be7..56aa3caa6965c74408197305280778ea60750cbc 100644
--- a/test/puppet-web/watchdog.spec.ts
+++ b/test/puppet-web/watchdog.spec.ts
@@ -20,6 +20,12 @@ import {
 
 const PROFILE = 'unit-test-session.wechaty.json'
 
+process.on('unhandledRejection', (reason, p) => {
+  console.log('!!!!!!!')
+  console.log('Unhandled Rejection at: Promise', p, 'reason:', reason)
+  console.log('!!!!!!!')
+})
+
 test('timer', async t => {
   const pw = new PuppetWeb({profile: PROFILE})
   t.truthy(pw, 'should instantiate a PuppetWeb')